diff --git a/demo_hard/Migrations/20250421231548_CreateOrderServiceTable.Designer.cs b/demo_hard/Migrations/20250421231548_CreateOrderServiceTable.Designer.cs
new file mode 100644
index 0000000..c61f0e2
--- /dev/null
+++ b/demo_hard/Migrations/20250421231548_CreateOrderServiceTable.Designer.cs
@@ -0,0 +1,288 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+using demo_hard.Models;
+
+#nullable disable
+
+namespace demo_hard.Migrations
+{
+    [DbContext(typeof(User15Context))]
+    [Migration("20250421231548_CreateOrderServiceTable")]
+    partial class CreateOrderServiceTable
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "8.0.10")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("OrderService", b =>
+                {
+                    b.Property<int>("OrdersOrderId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("ServicesServiceId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("OrdersOrderId", "ServicesServiceId");
+
+                    b.HasIndex("ServicesServiceId");
+
+                    b.ToTable("OrderService");
+                });
+
+            modelBuilder.Entity("demo_hard.Models.Client", b =>
+                {
+                    b.Property<int>("ClientId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer")
+                        .HasColumnName("client_id");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityAlwaysColumn(b.Property<int>("ClientId"));
+
+                    b.Property<string>("Address")
+                        .HasColumnType("character varying")
+                        .HasColumnName("address");
+
+                    b.Property<DateOnly?>("Birthday")
+                        .HasColumnType("date")
+                        .HasColumnName("birthday");
+
+                    b.Property<int?>("ClientCode")
+                        .HasColumnType("integer")
+                        .HasColumnName("client_code");
+
+                    b.Property<string>("Email")
+                        .HasColumnType("character varying")
+                        .HasColumnName("email");
+
+                    b.Property<string>("Fio")
+                        .HasMaxLength(100)
+                        .HasColumnType("character varying(100)")
+                        .HasColumnName("fio");
+
+                    b.Property<string>("Passport")
+                        .HasMaxLength(10)
+                        .HasColumnType("character varying(10)")
+                        .HasColumnName("passport");
+
+                    b.Property<string>("Password")
+                        .HasColumnType("character varying")
+                        .HasColumnName("password");
+
+                    b.Property<int?>("Role")
+                        .HasColumnType("integer")
+                        .HasColumnName("role");
+
+                    b.HasKey("ClientId")
+                        .HasName("client_pk");
+
+                    b.HasIndex(new[] { "ClientCode" }, "client_unique")
+                        .IsUnique();
+
+                    b.ToTable("client", (string)null);
+                });
+
+            modelBuilder.Entity("demo_hard.Models.Employee", b =>
+                {
+                    b.Property<int>("Id")
+                        .HasColumnType("integer")
+                        .HasColumnName("id");
+
+                    b.Property<string>("EnterStatus")
+                        .HasColumnType("character varying")
+                        .HasColumnName("enter_status");
+
+                    b.Property<string>("Fio")
+                        .HasColumnType("character varying")
+                        .HasColumnName("fio");
+
+                    b.Property<DateTime?>("LastEnter")
+                        .HasColumnType("timestamp without time zone")
+                        .HasColumnName("last_enter");
+
+                    b.Property<string>("Login")
+                        .HasColumnType("character varying")
+                        .HasColumnName("login");
+
+                    b.Property<string>("Password")
+                        .HasColumnType("character varying")
+                        .HasColumnName("password");
+
+                    b.Property<string>("Photo")
+                        .HasColumnType("character varying")
+                        .HasColumnName("photo");
+
+                    b.Property<int>("Role")
+                        .HasColumnType("integer")
+                        .HasColumnName("role");
+
+                    b.HasKey("Id")
+                        .HasName("employees_pk");
+
+                    b.ToTable("employees", (string)null);
+                });
+
+            modelBuilder.Entity("demo_hard.Models.Order", b =>
+                {
+                    b.Property<int>("OrderId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer")
+                        .HasColumnName("order_id");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityAlwaysColumn(b.Property<int>("OrderId"));
+
+                    b.Property<int?>("ClientId")
+                        .HasColumnType("integer")
+                        .HasColumnName("client_id");
+
+                    b.Property<DateOnly?>("EndDate")
+                        .HasColumnType("date")
+                        .HasColumnName("end_date");
+
+                    b.Property<string>("OrderCode")
+                        .HasColumnType("character varying")
+                        .HasColumnName("order_code");
+
+                    b.Property<int?>("RentTime")
+                        .HasColumnType("integer")
+                        .HasColumnName("rent_time");
+
+                    b.Property<DateOnly?>("StartDate")
+                        .HasColumnType("date")
+                        .HasColumnName("start_date");
+
+                    b.Property<string>("Status")
+                        .HasColumnType("character varying")
+                        .HasColumnName("status");
+
+                    b.Property<TimeOnly?>("Time")
+                        .HasColumnType("time without time zone")
+                        .HasColumnName("time");
+
+                    b.HasKey("OrderId")
+                        .HasName("orders_pk");
+
+                    b.ToTable("orders", (string)null);
+                });
+
+            modelBuilder.Entity("demo_hard.Models.OrderService", b =>
+                {
+                    b.Property<int>("OrderId")
+                        .HasColumnType("integer")
+                        .HasColumnName("order_id");
+
+                    b.Property<int>("ServiceId")
+                        .HasColumnType("integer")
+                        .HasColumnName("service_id");
+
+                    b.Property<int>("RentTime")
+                        .HasColumnType("integer")
+                        .HasColumnName("rent_time");
+
+                    b.HasKey("OrderId", "ServiceId");
+
+                    b.HasIndex("ServiceId");
+
+                    b.ToTable("order_services", (string)null);
+                });
+
+            modelBuilder.Entity("demo_hard.Models.Role", b =>
+                {
+                    b.Property<int>("RoleId")
+                        .HasColumnType("integer")
+                        .HasColumnName("role_id");
+
+                    b.Property<string>("RoleName")
+                        .HasColumnType("character varying")
+                        .HasColumnName("role_name");
+
+                    b.ToTable("roles", (string)null);
+                });
+
+            modelBuilder.Entity("demo_hard.Models.Service", b =>
+                {
+                    b.Property<int>("ServiceId")
+                        .HasColumnType("integer")
+                        .HasColumnName("service_id");
+
+                    b.Property<int?>("CostPerHour")
+                        .HasColumnType("integer")
+                        .HasColumnName("cost_per_hour");
+
+                    b.Property<string>("ServiceCode")
+                        .IsRequired()
+                        .HasColumnType("character varying")
+                        .HasColumnName("service_code");
+
+                    b.Property<string>("ServiceName")
+                        .HasColumnType("character varying")
+                        .HasColumnName("service_name");
+
+                    b.HasKey("ServiceId")
+                        .HasName("services_pk");
+
+                    b.HasIndex(new[] { "ServiceCode" }, "services_unique")
+                        .IsUnique();
+
+                    b.ToTable("services", (string)null);
+                });
+
+            modelBuilder.Entity("OrderService", b =>
+                {
+                    b.HasOne("demo_hard.Models.Order", null)
+                        .WithMany()
+                        .HasForeignKey("OrdersOrderId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("demo_hard.Models.Service", null)
+                        .WithMany()
+                        .HasForeignKey("ServicesServiceId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("demo_hard.Models.OrderService", b =>
+                {
+                    b.HasOne("demo_hard.Models.Order", "Order")
+                        .WithMany("OrderServices")
+                        .HasForeignKey("OrderId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired()
+                        .HasConstraintName("order_services_order_id_fkey");
+
+                    b.HasOne("demo_hard.Models.Service", "Service")
+                        .WithMany("OrderServices")
+                        .HasForeignKey("ServiceId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired()
+                        .HasConstraintName("order_services_service_id_fkey");
+
+                    b.Navigation("Order");
+
+                    b.Navigation("Service");
+                });
+
+            modelBuilder.Entity("demo_hard.Models.Order", b =>
+                {
+                    b.Navigation("OrderServices");
+                });
+
+            modelBuilder.Entity("demo_hard.Models.Service", b =>
+                {
+                    b.Navigation("OrderServices");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}
diff --git a/demo_hard/Migrations/20250421231548_CreateOrderServiceTable.cs b/demo_hard/Migrations/20250421231548_CreateOrderServiceTable.cs
new file mode 100644
index 0000000..1e7e54e
--- /dev/null
+++ b/demo_hard/Migrations/20250421231548_CreateOrderServiceTable.cs
@@ -0,0 +1,53 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace demo_hard.Migrations
+{
+    /// <inheritdoc />
+    public partial class CreateOrderServiceTable : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "order_services",
+                columns: table => new
+                {
+                    order_id = table.Column<int>(type: "integer", nullable: false),
+                    service_id = table.Column<int>(type: "integer", nullable: false),
+                    rent_time = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_order_services", x => new { x.order_id, x.service_id });
+                    table.ForeignKey(
+                        name: "FK_order_services_orders_order_id",
+                        column: x => x.order_id,
+                        principalTable: "orders",
+                        principalColumn: "order_id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_order_services_services_service_id",
+                        column: x => x.service_id,
+                        principalTable: "services",
+                        principalColumn: "service_id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_order_services_service_id",
+                table: "order_services",
+                column: "service_id");
+        }
+
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "order_services");
+        }
+    }
+}
+
diff --git a/demo_hard/Migrations/User15ContextModelSnapshot.cs b/demo_hard/Migrations/User15ContextModelSnapshot.cs
new file mode 100644
index 0000000..5928cef
--- /dev/null
+++ b/demo_hard/Migrations/User15ContextModelSnapshot.cs
@@ -0,0 +1,285 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+using demo_hard.Models;
+
+#nullable disable
+
+namespace demo_hard.Migrations
+{
+    [DbContext(typeof(User15Context))]
+    partial class User15ContextModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "8.0.10")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("OrderService", b =>
+                {
+                    b.Property<int>("OrdersOrderId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("ServicesServiceId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("OrdersOrderId", "ServicesServiceId");
+
+                    b.HasIndex("ServicesServiceId");
+
+                    b.ToTable("OrderService");
+                });
+
+            modelBuilder.Entity("demo_hard.Models.Client", b =>
+                {
+                    b.Property<int>("ClientId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer")
+                        .HasColumnName("client_id");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityAlwaysColumn(b.Property<int>("ClientId"));
+
+                    b.Property<string>("Address")
+                        .HasColumnType("character varying")
+                        .HasColumnName("address");
+
+                    b.Property<DateOnly?>("Birthday")
+                        .HasColumnType("date")
+                        .HasColumnName("birthday");
+
+                    b.Property<int?>("ClientCode")
+                        .HasColumnType("integer")
+                        .HasColumnName("client_code");
+
+                    b.Property<string>("Email")
+                        .HasColumnType("character varying")
+                        .HasColumnName("email");
+
+                    b.Property<string>("Fio")
+                        .HasMaxLength(100)
+                        .HasColumnType("character varying(100)")
+                        .HasColumnName("fio");
+
+                    b.Property<string>("Passport")
+                        .HasMaxLength(10)
+                        .HasColumnType("character varying(10)")
+                        .HasColumnName("passport");
+
+                    b.Property<string>("Password")
+                        .HasColumnType("character varying")
+                        .HasColumnName("password");
+
+                    b.Property<int?>("Role")
+                        .HasColumnType("integer")
+                        .HasColumnName("role");
+
+                    b.HasKey("ClientId")
+                        .HasName("client_pk");
+
+                    b.HasIndex(new[] { "ClientCode" }, "client_unique")
+                        .IsUnique();
+
+                    b.ToTable("client", (string)null);
+                });
+
+            modelBuilder.Entity("demo_hard.Models.Employee", b =>
+                {
+                    b.Property<int>("Id")
+                        .HasColumnType("integer")
+                        .HasColumnName("id");
+
+                    b.Property<string>("EnterStatus")
+                        .HasColumnType("character varying")
+                        .HasColumnName("enter_status");
+
+                    b.Property<string>("Fio")
+                        .HasColumnType("character varying")
+                        .HasColumnName("fio");
+
+                    b.Property<DateTime?>("LastEnter")
+                        .HasColumnType("timestamp without time zone")
+                        .HasColumnName("last_enter");
+
+                    b.Property<string>("Login")
+                        .HasColumnType("character varying")
+                        .HasColumnName("login");
+
+                    b.Property<string>("Password")
+                        .HasColumnType("character varying")
+                        .HasColumnName("password");
+
+                    b.Property<string>("Photo")
+                        .HasColumnType("character varying")
+                        .HasColumnName("photo");
+
+                    b.Property<int>("Role")
+                        .HasColumnType("integer")
+                        .HasColumnName("role");
+
+                    b.HasKey("Id")
+                        .HasName("employees_pk");
+
+                    b.ToTable("employees", (string)null);
+                });
+
+            modelBuilder.Entity("demo_hard.Models.Order", b =>
+                {
+                    b.Property<int>("OrderId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer")
+                        .HasColumnName("order_id");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityAlwaysColumn(b.Property<int>("OrderId"));
+
+                    b.Property<int?>("ClientId")
+                        .HasColumnType("integer")
+                        .HasColumnName("client_id");
+
+                    b.Property<DateOnly?>("EndDate")
+                        .HasColumnType("date")
+                        .HasColumnName("end_date");
+
+                    b.Property<string>("OrderCode")
+                        .HasColumnType("character varying")
+                        .HasColumnName("order_code");
+
+                    b.Property<int?>("RentTime")
+                        .HasColumnType("integer")
+                        .HasColumnName("rent_time");
+
+                    b.Property<DateOnly?>("StartDate")
+                        .HasColumnType("date")
+                        .HasColumnName("start_date");
+
+                    b.Property<string>("Status")
+                        .HasColumnType("character varying")
+                        .HasColumnName("status");
+
+                    b.Property<TimeOnly?>("Time")
+                        .HasColumnType("time without time zone")
+                        .HasColumnName("time");
+
+                    b.HasKey("OrderId")
+                        .HasName("orders_pk");
+
+                    b.ToTable("orders", (string)null);
+                });
+
+            modelBuilder.Entity("demo_hard.Models.OrderService", b =>
+                {
+                    b.Property<int>("OrderId")
+                        .HasColumnType("integer")
+                        .HasColumnName("order_id");
+
+                    b.Property<int>("ServiceId")
+                        .HasColumnType("integer")
+                        .HasColumnName("service_id");
+
+                    b.Property<int>("RentTime")
+                        .HasColumnType("integer")
+                        .HasColumnName("rent_time");
+
+                    b.HasKey("OrderId", "ServiceId");
+
+                    b.HasIndex("ServiceId");
+
+                    b.ToTable("order_services", (string)null);
+                });
+
+            modelBuilder.Entity("demo_hard.Models.Role", b =>
+                {
+                    b.Property<int>("RoleId")
+                        .HasColumnType("integer")
+                        .HasColumnName("role_id");
+
+                    b.Property<string>("RoleName")
+                        .HasColumnType("character varying")
+                        .HasColumnName("role_name");
+
+                    b.ToTable("roles", (string)null);
+                });
+
+            modelBuilder.Entity("demo_hard.Models.Service", b =>
+                {
+                    b.Property<int>("ServiceId")
+                        .HasColumnType("integer")
+                        .HasColumnName("service_id");
+
+                    b.Property<int?>("CostPerHour")
+                        .HasColumnType("integer")
+                        .HasColumnName("cost_per_hour");
+
+                    b.Property<string>("ServiceCode")
+                        .IsRequired()
+                        .HasColumnType("character varying")
+                        .HasColumnName("service_code");
+
+                    b.Property<string>("ServiceName")
+                        .HasColumnType("character varying")
+                        .HasColumnName("service_name");
+
+                    b.HasKey("ServiceId")
+                        .HasName("services_pk");
+
+                    b.HasIndex(new[] { "ServiceCode" }, "services_unique")
+                        .IsUnique();
+
+                    b.ToTable("services", (string)null);
+                });
+
+            modelBuilder.Entity("OrderService", b =>
+                {
+                    b.HasOne("demo_hard.Models.Order", null)
+                        .WithMany()
+                        .HasForeignKey("OrdersOrderId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("demo_hard.Models.Service", null)
+                        .WithMany()
+                        .HasForeignKey("ServicesServiceId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("demo_hard.Models.OrderService", b =>
+                {
+                    b.HasOne("demo_hard.Models.Order", "Order")
+                        .WithMany("OrderServices")
+                        .HasForeignKey("OrderId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired()
+                        .HasConstraintName("order_services_order_id_fkey");
+
+                    b.HasOne("demo_hard.Models.Service", "Service")
+                        .WithMany("OrderServices")
+                        .HasForeignKey("ServiceId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired()
+                        .HasConstraintName("order_services_service_id_fkey");
+
+                    b.Navigation("Order");
+
+                    b.Navigation("Service");
+                });
+
+            modelBuilder.Entity("demo_hard.Models.Order", b =>
+                {
+                    b.Navigation("OrderServices");
+                });
+
+            modelBuilder.Entity("demo_hard.Models.Service", b =>
+                {
+                    b.Navigation("OrderServices");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}
diff --git a/demo_hard/Models/Order.cs b/demo_hard/Models/Order.cs
index 5a2e259..80190d7 100644
--- a/demo_hard/Models/Order.cs
+++ b/demo_hard/Models/Order.cs
@@ -6,20 +6,14 @@ namespace demo_hard.Models;
 public partial class Order
 {
     public int OrderId { get; set; }
-
     public string? OrderCode { get; set; }
-
     public TimeOnly? Time { get; set; }
-
     public DateOnly? EndDate { get; set; }
-
     public int? RentTime { get; set; }
-
     public DateOnly? StartDate { get; set; }
-
     public int? ClientId { get; set; }
-
     public string? Status { get; set; }
-
+    
+    public virtual ICollection<OrderService> OrderServices { get; set; } = new List<OrderService>();
     public virtual ICollection<Service> Services { get; set; } = new List<Service>();
-}
+}
\ No newline at end of file
diff --git a/demo_hard/Models/OrderService.cs b/demo_hard/Models/OrderService.cs
new file mode 100644
index 0000000..0efac48
--- /dev/null
+++ b/demo_hard/Models/OrderService.cs
@@ -0,0 +1,12 @@
+namespace demo_hard.Models;
+
+public class OrderService
+{
+    public int OrderId { get; set; }
+    public int ServiceId { get; set; }
+    public int RentTime { get; set; }
+    
+    public virtual Order Order { get; set; }
+    
+    public virtual Service Service { get; set; }
+}
\ No newline at end of file
diff --git a/demo_hard/Models/Service.cs b/demo_hard/Models/Service.cs
index c18c048..a43e9b4 100644
--- a/demo_hard/Models/Service.cs
+++ b/demo_hard/Models/Service.cs
@@ -1,17 +1,14 @@
-using System;
-using System.Collections.Generic;
+using System.Collections.Generic;
 
 namespace demo_hard.Models;
 
 public partial class Service
 {
     public string? ServiceName { get; set; }
-
     public int? CostPerHour { get; set; }
-
     public string ServiceCode { get; set; } = null!;
-
     public int ServiceId { get; set; }
-
+    
+    public virtual ICollection<OrderService> OrderServices { get; set; } = new List<OrderService>();
     public virtual ICollection<Order> Orders { get; set; } = new List<Order>();
-}
+}
\ No newline at end of file
diff --git a/demo_hard/Models/User15Context.cs b/demo_hard/Models/User15Context.cs
index 167a850..5582c80 100644
--- a/demo_hard/Models/User15Context.cs
+++ b/demo_hard/Models/User15Context.cs
@@ -16,27 +16,26 @@ public partial class User15Context : DbContext
     }
 
     public virtual DbSet<Client> Clients { get; set; }
-
     public virtual DbSet<Employee> Employees { get; set; }
-
     public virtual DbSet<Order> Orders { get; set; }
-
     public virtual DbSet<Role> Roles { get; set; }
-
     public virtual DbSet<Service> Services { get; set; }
+    public virtual DbSet<OrderService> OrderServices { get; set; }
 
     protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
-#warning To protect potentially sensitive information in your connection string, you should move it out of source code. You can avoid scaffolding the connection string by using the Name= syntax to read it from configuration - see https://go.microsoft.com/fwlink/?linkid=2131148. For more guidance on storing connection strings, see https://go.microsoft.com/fwlink/?LinkId=723263.
-        => optionsBuilder.UseNpgsql("Host=45.67.56.214;Port=5421;USERNAME=user15;DATABASE=user15;Password=3XkvwMOb");
+    {
+        if (!optionsBuilder.IsConfigured)
+        {
+            optionsBuilder.UseNpgsql("Host=45.67.56.214;Port=5421;USERNAME=user15;DATABASE=user15;Password=3XkvwMOb");
+        }
+    }
 
     protected override void OnModelCreating(ModelBuilder modelBuilder)
     {
         modelBuilder.Entity<Client>(entity =>
         {
             entity.HasKey(e => e.ClientId).HasName("client_pk");
-
             entity.ToTable("client");
-
             entity.HasIndex(e => e.ClientCode, "client_unique").IsUnique();
 
             entity.Property(e => e.ClientId)
@@ -65,7 +64,6 @@ public partial class User15Context : DbContext
         modelBuilder.Entity<Employee>(entity =>
         {
             entity.HasKey(e => e.Id).HasName("employees_pk");
-
             entity.ToTable("employees");
 
             entity.Property(e => e.Id)
@@ -95,7 +93,6 @@ public partial class User15Context : DbContext
         modelBuilder.Entity<Order>(entity =>
         {
             entity.HasKey(e => e.OrderId).HasName("orders_pk");
-
             entity.ToTable("orders");
 
             entity.Property(e => e.OrderId)
@@ -113,32 +110,14 @@ public partial class User15Context : DbContext
                 .HasColumnName("status");
             entity.Property(e => e.Time).HasColumnName("time");
 
-            entity.HasMany(d => d.Services).WithMany(p => p.Orders)
-                .UsingEntity<Dictionary<string, object>>(
-                    "OrderService",
-                    r => r.HasOne<Service>().WithMany()
-                        .HasForeignKey("ServiceId")
-                        .OnDelete(DeleteBehavior.ClientSetNull)
-                        .HasConstraintName("order_services_service_id_fkey"),
-                    l => l.HasOne<Order>().WithMany()
-                        .HasForeignKey("OrderId")
-                        .OnDelete(DeleteBehavior.ClientSetNull)
-                        .HasConstraintName("order_services_order_id_fkey"),
-                    j =>
-                    {
-                        j.HasKey("OrderId", "ServiceId").HasName("order_services_pkey");
-                        j.ToTable("order_services");
-                        j.IndexerProperty<int>("OrderId").HasColumnName("order_id");
-                        j.IndexerProperty<int>("ServiceId").HasColumnName("service_id");
-                    });
+            entity.HasMany(o => o.OrderServices)
+                  .WithOne(os => os.Order)
+                  .HasForeignKey(os => os.OrderId);
         });
 
         modelBuilder.Entity<Role>(entity =>
         {
-            entity
-                .HasNoKey()
-                .ToTable("roles");
-
+            entity.HasNoKey().ToTable("roles");
             entity.Property(e => e.RoleId).HasColumnName("role_id");
             entity.Property(e => e.RoleName)
                 .HasColumnType("character varying")
@@ -148,9 +127,7 @@ public partial class User15Context : DbContext
         modelBuilder.Entity<Service>(entity =>
         {
             entity.HasKey(e => e.ServiceId).HasName("services_pk");
-
             entity.ToTable("services");
-
             entity.HasIndex(e => e.ServiceCode, "services_unique").IsUnique();
 
             entity.Property(e => e.ServiceId)
@@ -163,10 +140,34 @@ public partial class User15Context : DbContext
             entity.Property(e => e.ServiceName)
                 .HasColumnType("character varying")
                 .HasColumnName("service_name");
+
+            entity.HasMany(s => s.OrderServices)
+                  .WithOne(os => os.Service)
+                  .HasForeignKey(os => os.ServiceId);
+        });
+
+        modelBuilder.Entity<OrderService>(entity =>
+        {
+            entity.HasKey(os => new { os.OrderId, os.ServiceId });
+            entity.ToTable("order_services");
+
+            entity.Property(os => os.OrderId).HasColumnName("order_id");
+            entity.Property(os => os.ServiceId).HasColumnName("service_id");
+            entity.Property(os => os.RentTime).HasColumnName("rent_time");
+
+            entity.HasOne(os => os.Order)
+                  .WithMany(o => o.OrderServices)
+                  .HasForeignKey(os => os.OrderId)
+                  .HasConstraintName("order_services_order_id_fkey");
+
+            entity.HasOne(os => os.Service)
+                  .WithMany(s => s.OrderServices)
+                  .HasForeignKey(os => os.ServiceId)
+                  .HasConstraintName("order_services_service_id_fkey");
         });
 
         OnModelCreatingPartial(modelBuilder);
     }
 
     partial void OnModelCreatingPartial(ModelBuilder modelBuilder);
-}
+}
\ No newline at end of file
diff --git a/demo_hard/Order.axaml.cs b/demo_hard/Order.axaml.cs
index 06ad9fb..c9a55e2 100644
--- a/demo_hard/Order.axaml.cs
+++ b/demo_hard/Order.axaml.cs
@@ -20,24 +20,52 @@ public partial class Order : Window
 
     private void LoadOrderData()
     {
-        
         var client = _db.Clients.FirstOrDefault(c => c.ClientId == _order.ClientId);
         
         OrderNumber.Text = _order.OrderId.ToString();
-        ClientName.Text = client?.Fio ?? "Не указан";  
+        ClientName.Text = client?.Fio ?? "Не указан";
         OrderDate.Text = $"{_order.StartDate} {_order.Time}";
-        TotalCost.Text = _order.Services.Sum(s => s.CostPerHour ?? 0).ToString("C");
-        StatusText.Text = _order.Status ?? "active";
+        
+        // Парсим информацию об услугах из OrderCode
+        var servicesInfo = ParseServicesInfo(_order);
+        TotalCost.Text = servicesInfo.totalCost.ToString("C");
+        StatusText.Text = _order.Status ?? "Новая";
+    }
+
+    private (decimal totalCost, string servicesText) ParseServicesInfo(Models.Order order)
+    {
+        decimal total = 0;
+        string info = "";
+        
+        if (!string.IsNullOrEmpty(order.OrderCode))
+        {
+            var parts = order.OrderCode.Split(';');
+            foreach (var part in parts)
+            {
+                if (string.IsNullOrEmpty(part)) continue;
+                
+                var serviceParts = part.Split(':');
+                if (serviceParts.Length == 2 && 
+                    int.TryParse(serviceParts[0], out var serviceId) &&
+                    int.TryParse(serviceParts[1], out var rentTime))
+                {
+                    var service = _db.Services.Find(serviceId);
+                    if (service != null)
+                    {
+                        var cost = (service.CostPerHour ?? 0) * rentTime;
+                        total += cost;
+                        info += $"{service.ServiceName} - {rentTime} ч ({cost:C})\n";
+                    }
+                }
+            }
+        }
+        
+        return (total, info);
     }
 
     private void PrintBarcode_Click(object sender, RoutedEventArgs e)
     {
-        if (_order.RentTime == null)
-        {
-            _order.RentTime = 1; 
-        }
-        
-        new BarcodeWindow(_order.OrderId, _order.RentTime.Value).Show();
+        new BarcodeWindow(_order.OrderId, _order.RentTime ?? 1).Show();
         Close();
     }
     
diff --git a/demo_hard/SallerWindow.axaml b/demo_hard/SallerWindow.axaml
index 428ae8c..c21bdb5 100644
--- a/demo_hard/SallerWindow.axaml
+++ b/demo_hard/SallerWindow.axaml
@@ -3,64 +3,91 @@
         x:Class="demo_hard.SallerWindow"
         x:CompileBindings="False"
         Title="Оформление заказа" 
-        Width="600" 
-        Height="500">
+        Width="650" 
+        Height="600">
     
-    <StackPanel Margin="15">
-        
-        <StackPanel Margin="0,0,0,10">
-            <TextBlock Text="Номер заказа:" FontWeight="Bold"/>
+    <StackPanel Margin="20">
+        <!-- Номер заказа -->
+        <StackPanel Margin="0,0,0,15">
+            <TextBlock Text="Номер заказа:" FontWeight="Bold" FontSize="14"/>
             <TextBox x:Name="OrderNumberBox" 
-                     Watermark="Автоматически"
-                     IsReadOnly="True"/>
+                     Watermark="Будет сгенерирован автоматически"
+                     IsReadOnly="True"
+                     FontSize="14"
+                     Padding="5"/>
         </StackPanel>
 
-        
-        <StackPanel Margin="0,0,0,10">
-            <TextBlock Text="Клиент:" FontWeight="Bold"/>
+        <!-- Клиент -->
+        <StackPanel Margin="0,0,0,15">
+            <TextBlock Text="Клиент:" FontWeight="Bold" FontSize="14"/>
             <DockPanel LastChildFill="True">
-                <Button Content="+" 
+                <Button Content="Добавить клиента" 
                         DockPanel.Dock="Right"
-                        Width="30"
-                        Margin="5,0,0,0"
-                        Click="AddClient_Click"/>
-                <ComboBox x:Name="ClientAutoComplete"
-                          ItemsSource="{Binding Clients}"
+                        Margin="10,0,0,0"
+                        Padding="10,5"
+                        Click="AddClientButtonClick"/>
+                <ComboBox ItemsSource="{Binding Clients}"
+                          SelectedItem="{Binding SelectedClient}"
                           DisplayMemberBinding="{Binding Fio}"
-                          SelectedItem="{Binding SelectedClient}"/>
+                          FontSize="14"
+                          Padding="5"/>
             </DockPanel>
         </StackPanel>
 
-        
-        <StackPanel Margin="0,0,0,10">
-            <TextBlock Text="Услуги:" FontWeight="Bold"/>
-            <DockPanel LastChildFill="True">
-                <Button Content="Добавить" 
+        <!-- Услуги -->
+        <StackPanel Margin="0,0,0,15">
+            <TextBlock Text="Услуги:" FontWeight="Bold" FontSize="14"/>
+            <DockPanel LastChildFill="True" Margin="0,0,0,10">
+                <Button Content="Добавить услугу" 
                         DockPanel.Dock="Right"
-                        Margin="5,0,0,0"
-                        Click="AddService_Click"/>
-                <ComboBox x:Name="ServiceAutoComplete"
-                          ItemsSource="{Binding Services}"
+                        Margin="10,0,0,0"
+                        Padding="10,5"
+                        Click="AddServiceButtonClick"/>
+                <ComboBox ItemsSource="{Binding Services}"
+                          SelectedItem="{Binding SelectedService}"
                           DisplayMemberBinding="{Binding ServiceName}"
-                          SelectedItem="{Binding SelectedService}"/>
+                          FontSize="14"
+                          Padding="5"/>
             </DockPanel>
             
-           
-            <TextBlock Text="Выбранные услуги:" Margin="0,10,0,5"/>
-            <ListBox x:Name="SelectedServicesList" 
-                     Height="150"
-                     ItemsSource="{Binding SelectedServices}">
+            <!-- Время аренды -->
+            <StackPanel Margin="0,0,0,10" Orientation="Horizontal" VerticalAlignment="Center">
+                <TextBlock Text="Время аренды (минуты):" 
+                          Margin="0,0,10,0"
+                          FontSize="14"/>
+                <TextBox Text="{Binding SelectedRentTime}" 
+                         Width="100"
+                         FontSize="14"
+                         Padding="5"/>
+            </StackPanel>
+            
+            <!-- Список выбранных услуг -->
+            <TextBlock Text="Выбранные услуги:" 
+                      Margin="0,0,0,5"
+                      FontWeight="Bold"
+                      FontSize="14"/>
+            <ListBox Height="180"
+                     ItemsSource="{Binding SelectedServices}"
+                     FontSize="14">
                 <ListBox.ItemTemplate>
                     <DataTemplate>
-                        <Grid ColumnDefinitions="*,100,Auto">
-                            <TextBlock Text="{Binding ServiceName}" VerticalAlignment="Center"/>
-                            <TextBlock Text="{Binding CostPerHour, StringFormat='{}{0:C}'}" 
+                        <Grid ColumnDefinitions="*,100,80,80,Auto" Margin="0,5">
+                            <TextBlock Text="{Binding ServiceName}" 
+                                     VerticalAlignment="Center"/>
+                            <TextBlock Text="{Binding CostPerHour, StringFormat='{}{0:C} / час'}" 
                                      Grid.Column="1" 
                                      TextAlignment="Right"/>
-                            <Button Content="×" 
-                                    Grid.Column="2"
-                                    Width="25"
-                                    Click="RemoveService_Click"
+                            <TextBlock Text="{Binding RentTime, StringFormat='{}{0} мин'}" 
+                                     Grid.Column="2"
+                                     TextAlignment="Center"/>
+                            <TextBlock Text="{Binding Status}" 
+                                     Grid.Column="3"
+                                     TextAlignment="Center"/>
+                            <Button Content="Удалить" 
+                                    Grid.Column="4"
+                                    Padding="10,2"
+                                    Margin="10,0,0,0"
+                                    Click="RemoveServiceButtonClick"
                                     CommandParameter="{Binding}"/>
                         </Grid>
                     </DataTemplate>
@@ -68,18 +95,22 @@
             </ListBox>
         </StackPanel>
 
-        
+        <!-- Кнопка оформления -->
         <Button Content="Оформить заказ" 
                 HorizontalAlignment="Stretch"
-                Margin="0,15,0,0"
-                Padding="10"
-                Click="CreateOrder_Click"
+                Margin="0,20,0,0"
+                Padding="15,5"
+                Click="CreateOrderButtonClick"
                 Background="#4CAF50"
-                Foreground="White"/>
+                Foreground="White"
+                FontSize="14"
+                FontWeight="Bold"/>
 
-        
+        <!-- Статус -->
         <TextBlock x:Name="StatusText" 
                    Foreground="Red"
-                   TextWrapping="Wrap"/>
+                   TextWrapping="Wrap"
+                   Margin="0,10,0,0"
+                   FontSize="14"/>
     </StackPanel>
 </Window>
\ No newline at end of file
diff --git a/demo_hard/SallerWindow.axaml.cs b/demo_hard/SallerWindow.axaml.cs
index 955be25..3e2a07a 100644
--- a/demo_hard/SallerWindow.axaml.cs
+++ b/demo_hard/SallerWindow.axaml.cs
@@ -6,47 +6,72 @@ using Avalonia.Interactivity;
 using demo_hard.Models;
 using Microsoft.EntityFrameworkCore;
 using System.Threading.Tasks;
-using Avalonia.Input;
+using System.IO;
+using System.Diagnostics;
+using iTextSharp.text;
+using iTextSharp.text.pdf;
+using ReactiveUI;
 using System.ComponentModel;
 
 namespace demo_hard;
 
-public partial class SallerWindow : Window, INotifyPropertyChanged
+public partial class SallerWindow : Window, INotifyPropertyChanged, IReactiveObject, INotifyPropertyChanging
 {
-    private readonly User15Context _db = new();
-    public ObservableCollection<Client> Clients { get; } = new();
-    public ObservableCollection<Service> Services { get; } = new();
-    public ObservableCollection<Service> SelectedServices { get; } = new();
+    private readonly User15Context _databaseContext = new User15Context();
+    public ObservableCollection<Client> Clients { get; } = new ObservableCollection<Client>();
+    public ObservableCollection<Service> Services { get; } = new ObservableCollection<Service>();
+    public ObservableCollection<ServiceWithRentTime> SelectedServices { get; } = new ObservableCollection<ServiceWithRentTime>();
 
-    private Client? _selectedClient;
-    public Client? SelectedClient
+    public class ServiceWithRentTime : Service
     {
-        get => _selectedClient;
-        set
-        {
-            _selectedClient = value;
-            OnPropertyChanged(nameof(SelectedClient));
-        }
+        public int RentTime { get; set; } = 30;
+        public string Status { get; set; } = "Новая";
     }
 
-    private Service? _selectedService;
-    public Service? SelectedService
+    private Client _selectedClient;
+    public Client SelectedClient
     {
-        get => _selectedService;
-        set
-        {
-            _selectedService = value;
-            OnPropertyChanged(nameof(SelectedService));
-        }
+        get { return _selectedClient; }
+        set { this.RaiseAndSetIfChanged(ref _selectedClient, value); }
     }
 
-    public event PropertyChangedEventHandler? PropertyChanged;
+    private Service _selectedService;
+    public Service SelectedService
+    {
+        get { return _selectedService; }
+        set { this.RaiseAndSetIfChanged(ref _selectedService, value); }
+    }
+
+    private int _selectedRentTime = 30;
+    public int SelectedRentTime
+    {
+        get { return _selectedRentTime; }
+        set { this.RaiseAndSetIfChanged(ref _selectedRentTime, value); }
+    }
+
+    public event PropertyChangedEventHandler PropertyChanged;
+    public event PropertyChangingEventHandler PropertyChanging;
+
+    void IReactiveObject.RaisePropertyChanged(PropertyChangedEventArgs eventArgs)
+    {
+        PropertyChanged?.Invoke(this, eventArgs);
+    }
+
+    void IReactiveObject.RaisePropertyChanging(PropertyChangingEventArgs eventArgs)
+    {
+        PropertyChanging?.Invoke(this, eventArgs);
+    }
 
     protected virtual void OnPropertyChanged(string propertyName)
     {
         PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
     }
 
+    protected virtual void OnPropertyChanging(string propertyName)
+    {
+        PropertyChanging?.Invoke(this, new PropertyChangingEventArgs(propertyName));
+    }
+
     public SallerWindow()
     {
         InitializeComponent();
@@ -59,52 +84,63 @@ public partial class SallerWindow : Window, INotifyPropertyChanged
     {
         try
         {
-            await _db.Clients.LoadAsync();
-            await _db.Services.LoadAsync();
+            await _databaseContext.Clients.LoadAsync();
+            await _databaseContext.Services.LoadAsync();
             
             Clients.Clear();
             Services.Clear();
             
-            foreach (var client in _db.Clients.Local.ToList())
+            foreach (Client client in _databaseContext.Clients.Local.ToList())
+            {
                 Clients.Add(client);
+            }
                 
-            foreach (var service in _db.Services.Local.ToList())
+            foreach (Service service in _databaseContext.Services.Local.ToList())
+            {
                 Services.Add(service);
+            }
         }
-        catch (Exception ex)
+        catch (Exception exception)
         {
-            StatusText.Text = $"Ошибка загрузки данных: {ex.Message}";
+            StatusText.Text = $"Ошибка загрузки данных: {exception.Message}";
         }
     }
 
-    private async void AddClient_Click(object sender, RoutedEventArgs e)
+    private async void AddClientButtonClick(object sender, RoutedEventArgs routedEventArgs)
     {
-        var dialog = new AddClient();
-        var newClient = await dialog.ShowDialog<Client?>(this);
+        AddClient dialogWindow = new AddClient();
+        Client newClient = await dialogWindow.ShowDialog<Client>(this);
         
         if (newClient != null)
         {
             try
             {
-                _db.Clients.Add(newClient);
-                await _db.SaveChangesAsync();
+                _databaseContext.Clients.Add(newClient);
+                await _databaseContext.SaveChangesAsync();
                 Clients.Add(newClient);
                 SelectedClient = newClient;
             }
-            catch (Exception ex)
+            catch (Exception exception)
             {
-                StatusText.Text = $"Ошибка добавления клиента: {ex.Message}";
+                StatusText.Text = $"Ошибка добавления клиента: {exception.Message}";
             }
         }
     }
 
-    private void AddService_Click(object sender, RoutedEventArgs e)
+    private void AddServiceButtonClick(object sender, RoutedEventArgs routedEventArgs)
     {
         if (SelectedService != null)
         {
-            if (!SelectedServices.Contains(SelectedService))
+            if (!SelectedServices.Any(service => service.ServiceId == SelectedService.ServiceId))
             {
-                SelectedServices.Add(SelectedService);
+                SelectedServices.Add(new ServiceWithRentTime
+                {
+                    ServiceId = SelectedService.ServiceId,
+                    ServiceName = SelectedService.ServiceName,
+                    CostPerHour = SelectedService.CostPerHour,
+                    RentTime = SelectedRentTime,
+                    Status = "Новая"
+                });
             }
             else
             {
@@ -117,25 +153,23 @@ public partial class SallerWindow : Window, INotifyPropertyChanged
         }
     }
 
-    private void RemoveService_Click(object sender, RoutedEventArgs e)
+    private void RemoveServiceButtonClick(object sender, RoutedEventArgs routedEventArgs)
     {
-        if (sender is Button button && button.CommandParameter is Service service)
+        if (sender is Button button && button.CommandParameter is ServiceWithRentTime service)
         {
             SelectedServices.Remove(service);
         }
     }
 
-    private async void CreateOrder_Click(object sender, RoutedEventArgs e)
+    private async void CreateOrderButtonClick(object sender, RoutedEventArgs routedEventArgs)
     {
-        
         if (SelectedClient == null)
         {
             StatusText.Text = "Выберите клиента";
             return;
         }
 
-      
-        if (!SelectedServices.Any())
+        if (SelectedServices.Count == 0)
         {
             StatusText.Text = "Добавьте хотя бы одну услугу";
             return;
@@ -143,40 +177,117 @@ public partial class SallerWindow : Window, INotifyPropertyChanged
 
         try
         {
-            
-            var order = new Models.Order()
+            string orderNumber = $"{new Random().Next(10000000, 99999999)}/{DateTime.Now:dd.MM.yyyy}";
+            Models.Order newOrder = new Models.Order()
             {
                 ClientId = SelectedClient.ClientId,
                 Time = TimeOnly.FromDateTime(DateTime.Now),
                 StartDate = DateOnly.FromDateTime(DateTime.Now),
-                Status = "active",
-                Services = SelectedServices.ToList(),
-                RentTime = 1
+                Status = "Новая",
+                RentTime = SelectedServices.Max(service => service.RentTime),
+                OrderCode = orderNumber
             };
 
-          
-            _db.Orders.Add(order);
-            await _db.SaveChangesAsync();
+            _databaseContext.Orders.Add(newOrder);
+            await _databaseContext.SaveChangesAsync();
 
-            
-            order.OrderCode = GenerateBarcode(order.OrderId, order.RentTime ?? 1);
-            await _db.SaveChangesAsync(); 
+            foreach (ServiceWithRentTime service in SelectedServices)
+            {
+                _databaseContext.OrderServices.Add(new OrderService
+                {
+                    OrderId = newOrder.OrderId,
+                    ServiceId = service.ServiceId,
+                    RentTime = service.RentTime
+                });
+            }
 
-            
-            new BarcodeWindow(order.OrderId, order.RentTime ?? 1).Show();
-            
-           
+            await _databaseContext.SaveChangesAsync();
+            GenerateOrderPdfDocument(newOrder);
+            new BarcodeWindow(newOrder.OrderId, newOrder.RentTime ?? 30).Show();
             Close();
         }
-        catch (Exception ex)
+        catch (Exception exception)
         {
-            StatusText.Text = $"Ошибка создания заказа: {ex.Message}";
+            StatusText.Text = $"Ошибка создания заказа: {exception.Message}";
         }
     }
 
-    private string GenerateBarcode(int orderId, int rentTime)
+    private void GenerateOrderPdfDocument(Models.Order order)
     {
-        var rnd = new Random();
-        return $"{orderId}{DateTime.Now:ddMMyyHHmm}{rentTime}{rnd.Next(100000, 999999)}";
+        string documentsDirectoryPath = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
+        string pdfFilePath = Path.Combine(documentsDirectoryPath, $"Заказ_{order.OrderCode.Replace("/", "_")}.pdf");
+
+        using (Document document = new Document(PageSize.A4, 40, 40, 40, 40))
+        {
+            PdfWriter pdfWriter = PdfWriter.GetInstance(document, new FileStream(pdfFilePath, FileMode.Create));
+            document.Open();
+
+            Font titleFont = FontFactory.GetFont("Arial", 16, Font.BOLD);
+            Font headerFont = FontFactory.GetFont("Arial", 12, Font.BOLD);
+            Font normalFont = FontFactory.GetFont("Arial", 12);
+
+            Paragraph titleParagraph = new Paragraph("Квитанция об оплате", titleFont);
+            titleParagraph.Alignment = Element.ALIGN_CENTER;
+            titleParagraph.SpacingAfter = 20;
+            document.Add(titleParagraph);
+
+            PdfPTable orderInfoTable = new PdfPTable(2);
+            orderInfoTable.WidthPercentage = 100;
+            orderInfoTable.SetWidths(new float[] { 30, 70 });
+
+            AddPdfTableRow(orderInfoTable, "Номер заказа:", order.OrderCode, headerFont, normalFont);
+            AddPdfTableRow(orderInfoTable, "Дата и время:", $"{order.StartDate:dd.MM.yyyy} {order.Time:hh\\:mm}", headerFont, normalFont);
+            AddPdfTableRow(orderInfoTable, "Клиент:", SelectedClient?.Fio ?? "Не указан", headerFont, normalFont);
+            AddPdfTableRow(orderInfoTable, "Статус:", order.Status, headerFont, normalFont);
+
+            document.Add(orderInfoTable);
+            document.Add(new Paragraph(" "));
+
+            Paragraph servicesTitleParagraph = new Paragraph("Оказанные услуги:", headerFont);
+            servicesTitleParagraph.SpacingAfter = 10;
+            document.Add(servicesTitleParagraph);
+
+            PdfPTable servicesTable = new PdfPTable(3);
+            servicesTable.WidthPercentage = 100;
+            servicesTable.SetWidths(new float[] { 60, 20, 20 });
+
+            servicesTable.AddCell(new Phrase("Наименование услуги", headerFont));
+            servicesTable.AddCell(new Phrase("Стоимость/час", headerFont));
+            servicesTable.AddCell(new Phrase("Время (мин)", headerFont));
+
+            foreach (ServiceWithRentTime service in SelectedServices)
+            {
+                servicesTable.AddCell(new Phrase(service.ServiceName, normalFont));
+                servicesTable.AddCell(new Phrase($"{service.CostPerHour:N2} ₽", normalFont));
+                servicesTable.AddCell(new Phrase(service.RentTime.ToString(), normalFont));
+            }
+
+            document.Add(servicesTable);
+            document.Add(new Paragraph(" "));
+
+            decimal totalAmount = SelectedServices.Sum(service => (service.CostPerHour ?? 0) * (service.RentTime / 60m));
+            Paragraph totalParagraph = new Paragraph($"Итого к оплате: {totalAmount:N2} ₽", headerFont);
+            totalParagraph.Alignment = Element.ALIGN_RIGHT;
+            document.Add(totalParagraph);
+        }
+
+        try
+        {
+            Process.Start(new ProcessStartInfo
+            {
+                FileName = pdfFilePath,
+                UseShellExecute = true
+            });
+        }
+        catch (Exception exception)
+        {
+            StatusText.Text = $"Ошибка при открытии PDF: {exception.Message}";
+        }
+    }
+
+    private void AddPdfTableRow(PdfPTable table, string label, string value, Font labelFont, Font valueFont)
+    {
+        table.AddCell(new Phrase(label, labelFont));
+        table.AddCell(new Phrase(value, valueFont));
     }
 }
\ No newline at end of file
diff --git a/demo_hard/bin/Debug/net9.0/DynamicData.dll b/demo_hard/bin/Debug/net9.0/DynamicData.dll
new file mode 100644
index 0000000..1c7f8f1
Binary files /dev/null and b/demo_hard/bin/Debug/net9.0/DynamicData.dll differ
diff --git a/demo_hard/bin/Debug/net9.0/ReactiveUI.dll b/demo_hard/bin/Debug/net9.0/ReactiveUI.dll
new file mode 100644
index 0000000..32e440c
Binary files /dev/null and b/demo_hard/bin/Debug/net9.0/ReactiveUI.dll differ
diff --git a/demo_hard/bin/Debug/net9.0/Splat.dll b/demo_hard/bin/Debug/net9.0/Splat.dll
new file mode 100644
index 0000000..f288522
Binary files /dev/null and b/demo_hard/bin/Debug/net9.0/Splat.dll differ
diff --git a/demo_hard/bin/Debug/net9.0/System.Reactive.dll b/demo_hard/bin/Debug/net9.0/System.Reactive.dll
new file mode 100644
index 0000000..d6d2efa
Binary files /dev/null and b/demo_hard/bin/Debug/net9.0/System.Reactive.dll differ
diff --git a/demo_hard/bin/Debug/net9.0/demo_hard.deps.json b/demo_hard/bin/Debug/net9.0/demo_hard.deps.json
index f54a041..4cf98a3 100644
--- a/demo_hard/bin/Debug/net9.0/demo_hard.deps.json
+++ b/demo_hard/bin/Debug/net9.0/demo_hard.deps.json
@@ -17,6 +17,7 @@
           "Microsoft.EntityFrameworkCore": "8.0.10",
           "Microsoft.EntityFrameworkCore.Design": "8.0.10",
           "Npgsql.EntityFrameworkCore.PostgreSQL": "8.0.10",
+          "ReactiveUI": "20.2.45",
           "iTextSharp": "5.5.13.4",
           "xunit": "2.9.3"
         },
@@ -282,6 +283,17 @@
           }
         }
       },
+      "DynamicData/9.1.2": {
+        "dependencies": {
+          "System.Reactive": "6.0.1"
+        },
+        "runtime": {
+          "lib/net8.0/DynamicData.dll": {
+            "assemblyVersion": "9.1.0.0",
+            "fileVersion": "9.1.2.12211"
+          }
+        }
+      },
       "HarfBuzzSharp/7.3.0.2": {
         "dependencies": {
           "HarfBuzzSharp.NativeAssets.Win32": "7.3.0.2",
@@ -812,6 +824,20 @@
           }
         }
       },
+      "ReactiveUI/20.2.45": {
+        "dependencies": {
+          "DynamicData": "9.1.2",
+          "Splat": "15.3.1",
+          "System.ComponentModel.Annotations": "5.0.0",
+          "System.Text.Json": "9.0.2"
+        },
+        "runtime": {
+          "lib/net9.0/ReactiveUI.dll": {
+            "assemblyVersion": "20.2.0.0",
+            "fileVersion": "20.2.45.45496"
+          }
+        }
+      },
       "SkiaSharp/2.88.8": {
         "dependencies": {
           "SkiaSharp.NativeAssets.Win32": "2.88.8",
@@ -880,6 +906,14 @@
           }
         }
       },
+      "Splat/15.3.1": {
+        "runtime": {
+          "lib/net9.0/Splat.dll": {
+            "assemblyVersion": "15.3.0.0",
+            "fileVersion": "15.3.1.27942"
+          }
+        }
+      },
       "System.CodeDom/4.4.0": {
         "runtime": {
           "lib/netstandard2.0/System.CodeDom.dll": {
@@ -893,6 +927,7 @@
           "System.Runtime.CompilerServices.Unsafe": "6.0.0"
         }
       },
+      "System.ComponentModel.Annotations/5.0.0": {},
       "System.Composition/6.0.0": {
         "dependencies": {
           "System.Composition.AttributedModel": "6.0.0",
@@ -954,6 +989,14 @@
         }
       },
       "System.IO.Pipelines/8.0.0": {},
+      "System.Reactive/6.0.1": {
+        "runtime": {
+          "lib/net6.0/System.Reactive.dll": {
+            "assemblyVersion": "6.0.0.0",
+            "fileVersion": "6.0.1.7420"
+          }
+        }
+      },
       "System.Reflection.Metadata/6.0.1": {
         "dependencies": {
           "System.Collections.Immutable": "6.0.0"
@@ -965,6 +1008,7 @@
           "System.Runtime.CompilerServices.Unsafe": "6.0.0"
         }
       },
+      "System.Text.Json/9.0.2": {},
       "System.Threading.Channels/6.0.0": {},
       "Tmds.DBus.Protocol/0.20.0": {
         "dependencies": {
@@ -1163,6 +1207,13 @@
       "path": "dialoghost.avalonia/0.8.1",
       "hashPath": "dialoghost.avalonia.0.8.1.nupkg.sha512"
     },
+    "DynamicData/9.1.2": {
+      "type": "package",
+      "serviceable": true,
+      "sha512": "sha512-KMomv26cewTHkHENVKEajxM4EaFJw6fwXGsrdlncq5cdJGnWBHYMTRMuu7y2vbbyb8/VdxkYHlDwZa8mupDrww==",
+      "path": "dynamicdata/9.1.2",
+      "hashPath": "dynamicdata.9.1.2.nupkg.sha512"
+    },
     "HarfBuzzSharp/7.3.0.2": {
       "type": "package",
       "serviceable": true,
@@ -1394,6 +1445,13 @@
       "path": "npgsql.entityframeworkcore.postgresql/8.0.10",
       "hashPath": "npgsql.entityframeworkcore.postgresql.8.0.10.nupkg.sha512"
     },
+    "ReactiveUI/20.2.45": {
+      "type": "package",
+      "serviceable": true,
+      "sha512": "sha512-1wyThKtWNi0naldJBYcKcZWib2POzS+fVX28apHGTAl+Gd5iLzoDSlItvC22Yiy+hc8TB7KnkW47kofuXmBhmg==",
+      "path": "reactiveui/20.2.45",
+      "hashPath": "reactiveui.20.2.45.nupkg.sha512"
+    },
     "SkiaSharp/2.88.8": {
       "type": "package",
       "serviceable": true,
@@ -1429,6 +1487,13 @@
       "path": "skiasharp.nativeassets.win32/2.88.8",
       "hashPath": "skiasharp.nativeassets.win32.2.88.8.nupkg.sha512"
     },
+    "Splat/15.3.1": {
+      "type": "package",
+      "serviceable": true,
+      "sha512": "sha512-zyu98Mwp8gTi3MlS6EGtvcacmw5W/qA4/h/DVeZ28A1dR6mcM628ujHck6LK5SM6LwroR5LzBonWgeFtwo2Afg==",
+      "path": "splat/15.3.1",
+      "hashPath": "splat.15.3.1.nupkg.sha512"
+    },
     "System.CodeDom/4.4.0": {
       "type": "package",
       "serviceable": true,
@@ -1443,6 +1508,13 @@
       "path": "system.collections.immutable/6.0.0",
       "hashPath": "system.collections.immutable.6.0.0.nupkg.sha512"
     },
+    "System.ComponentModel.Annotations/5.0.0": {
+      "type": "package",
+      "serviceable": true,
+      "sha512": "sha512-dMkqfy2el8A8/I76n2Hi1oBFEbG1SfxD2l5nhwXV3XjlnOmwxJlQbYpJH4W51odnU9sARCSAgv7S3CyAFMkpYg==",
+      "path": "system.componentmodel.annotations/5.0.0",
+      "hashPath": "system.componentmodel.annotations.5.0.0.nupkg.sha512"
+    },
     "System.Composition/6.0.0": {
       "type": "package",
       "serviceable": true,
@@ -1492,6 +1564,13 @@
       "path": "system.io.pipelines/8.0.0",
       "hashPath": "system.io.pipelines.8.0.0.nupkg.sha512"
     },
+    "System.Reactive/6.0.1": {
+      "type": "package",
+      "serviceable": true,
+      "sha512": "sha512-rHaWtKDwCi9qJ3ObKo8LHPMuuwv33YbmQi7TcUK1C264V3MFnOr5Im7QgCTdLniztP3GJyeiSg5x8NqYJFqRmg==",
+      "path": "system.reactive/6.0.1",
+      "hashPath": "system.reactive.6.0.1.nupkg.sha512"
+    },
     "System.Reflection.Metadata/6.0.1": {
       "type": "package",
       "serviceable": true,
@@ -1513,6 +1592,13 @@
       "path": "system.text.encoding.codepages/6.0.0",
       "hashPath": "system.text.encoding.codepages.6.0.0.nupkg.sha512"
     },
+    "System.Text.Json/9.0.2": {
+      "type": "package",
+      "serviceable": true,
+      "sha512": "sha512-4TY2Yokh5Xp8XHFhsY9y84yokS7B0rhkaZCXuRiKppIiKwPVH4lVSFD9EEFzRpXdBM5ZeZXD43tc2vB6njEwwQ==",
+      "path": "system.text.json/9.0.2",
+      "hashPath": "system.text.json.9.0.2.nupkg.sha512"
+    },
     "System.Threading.Channels/6.0.0": {
       "type": "package",
       "serviceable": true,
diff --git a/demo_hard/bin/Debug/net9.0/demo_hard.dll b/demo_hard/bin/Debug/net9.0/demo_hard.dll
index 4d81d5f..8e15a5b 100644
Binary files a/demo_hard/bin/Debug/net9.0/demo_hard.dll and b/demo_hard/bin/Debug/net9.0/demo_hard.dll differ
diff --git a/demo_hard/bin/Debug/net9.0/demo_hard.exe b/demo_hard/bin/Debug/net9.0/demo_hard.exe
index e39250e..d14ffb5 100644
Binary files a/demo_hard/bin/Debug/net9.0/demo_hard.exe and b/demo_hard/bin/Debug/net9.0/demo_hard.exe differ
diff --git a/demo_hard/bin/Debug/net9.0/demo_hard.pdb b/demo_hard/bin/Debug/net9.0/demo_hard.pdb
index 1c37295..a367cd4 100644
Binary files a/demo_hard/bin/Debug/net9.0/demo_hard.pdb and b/demo_hard/bin/Debug/net9.0/demo_hard.pdb differ
diff --git a/demo_hard/demo_hard.csproj b/demo_hard/demo_hard.csproj
index 7fb76af..046d77b 100644
--- a/demo_hard/demo_hard.csproj
+++ b/demo_hard/demo_hard.csproj
@@ -26,6 +26,7 @@
           <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
         </PackageReference>
         <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="8.0.10" />
+        <PackageReference Include="ReactiveUI" Version="20.2.45" />
         <PackageReference Include="xunit" Version="2.9.3" />
     </ItemGroup>
 </Project>
diff --git a/demo_hard/obj/Debug/net9.0/Avalonia/Resources.Inputs.cache b/demo_hard/obj/Debug/net9.0/Avalonia/Resources.Inputs.cache
index 8bbdc02..a8c66a9 100644
--- a/demo_hard/obj/Debug/net9.0/Avalonia/Resources.Inputs.cache
+++ b/demo_hard/obj/Debug/net9.0/Avalonia/Resources.Inputs.cache
@@ -1 +1 @@
-d54093b2d5e283d443ce525f04f5738e8a7e63f037e2a7880fd2507b446d2e06
+a1a313d6927bda03862de3792a717da1cb8b66b60fd436676cb5d57a9b1e725b
diff --git a/demo_hard/obj/Debug/net9.0/Avalonia/demo_hard.dll b/demo_hard/obj/Debug/net9.0/Avalonia/demo_hard.dll
index 4d81d5f..8e15a5b 100644
Binary files a/demo_hard/obj/Debug/net9.0/Avalonia/demo_hard.dll and b/demo_hard/obj/Debug/net9.0/Avalonia/demo_hard.dll differ
diff --git a/demo_hard/obj/Debug/net9.0/Avalonia/demo_hard.pdb b/demo_hard/obj/Debug/net9.0/Avalonia/demo_hard.pdb
index 1c37295..a367cd4 100644
Binary files a/demo_hard/obj/Debug/net9.0/Avalonia/demo_hard.pdb and b/demo_hard/obj/Debug/net9.0/Avalonia/demo_hard.pdb differ
diff --git a/demo_hard/obj/Debug/net9.0/Avalonia/references b/demo_hard/obj/Debug/net9.0/Avalonia/references
index ec253d7..85e70f2 100644
--- a/demo_hard/obj/Debug/net9.0/Avalonia/references
+++ b/demo_hard/obj/Debug/net9.0/Avalonia/references
@@ -24,6 +24,7 @@ C:\Users\IVAN\.nuget\packages\avalonia.win32\11.2.1\lib\net8.0\Avalonia.Win32.dl
 C:\Users\IVAN\.nuget\packages\avalonia.x11\11.2.1\lib\net8.0\Avalonia.X11.dll
 C:\Users\IVAN\.nuget\packages\bouncycastle.cryptography\2.4.0\lib\net6.0\BouncyCastle.Cryptography.dll
 C:\Users\IVAN\.nuget\packages\dialoghost.avalonia\0.8.1\lib\netstandard2.0\DialogHost.Avalonia.dll
+C:\Users\IVAN\.nuget\packages\dynamicdata\9.1.2\lib\net8.0\DynamicData.dll
 C:\Users\IVAN\.nuget\packages\harfbuzzsharp\7.3.0.2\lib\net6.0\HarfBuzzSharp.dll
 C:\Users\IVAN\.nuget\packages\itextsharp\5.5.13.4\lib\net461\itextsharp.dll
 C:\Users\IVAN\.nuget\packages\microcom.runtime\0.11.0\lib\net5.0\MicroCom.Runtime.dll
@@ -49,7 +50,9 @@ C:\Program Files\dotnet\packs\Microsoft.NETCore.App.Ref\9.0.2\ref\net9.0\mscorli
 C:\Program Files\dotnet\packs\Microsoft.NETCore.App.Ref\9.0.2\ref\net9.0\netstandard.dll
 C:\Users\IVAN\.nuget\packages\npgsql\8.0.5\lib\net8.0\Npgsql.dll
 C:\Users\IVAN\.nuget\packages\npgsql.entityframeworkcore.postgresql\8.0.10\lib\net8.0\Npgsql.EntityFrameworkCore.PostgreSQL.dll
+C:\Users\IVAN\.nuget\packages\reactiveui\20.2.45\lib\net9.0\ReactiveUI.dll
 C:\Users\IVAN\.nuget\packages\skiasharp\2.88.8\lib\net6.0\SkiaSharp.dll
+C:\Users\IVAN\.nuget\packages\splat\15.3.1\lib\net9.0\Splat.dll
 C:\Program Files\dotnet\packs\Microsoft.NETCore.App.Ref\9.0.2\ref\net9.0\System.AppContext.dll
 C:\Program Files\dotnet\packs\Microsoft.NETCore.App.Ref\9.0.2\ref\net9.0\System.Buffers.dll
 C:\Program Files\dotnet\packs\Microsoft.NETCore.App.Ref\9.0.2\ref\net9.0\System.Collections.Concurrent.dll
@@ -131,6 +134,7 @@ C:\Program Files\dotnet\packs\Microsoft.NETCore.App.Ref\9.0.2\ref\net9.0\System.
 C:\Program Files\dotnet\packs\Microsoft.NETCore.App.Ref\9.0.2\ref\net9.0\System.Numerics.dll
 C:\Program Files\dotnet\packs\Microsoft.NETCore.App.Ref\9.0.2\ref\net9.0\System.Numerics.Vectors.dll
 C:\Program Files\dotnet\packs\Microsoft.NETCore.App.Ref\9.0.2\ref\net9.0\System.ObjectModel.dll
+C:\Users\IVAN\.nuget\packages\system.reactive\6.0.1\lib\net6.0\System.Reactive.dll
 C:\Program Files\dotnet\packs\Microsoft.NETCore.App.Ref\9.0.2\ref\net9.0\System.Reflection.DispatchProxy.dll
 C:\Program Files\dotnet\packs\Microsoft.NETCore.App.Ref\9.0.2\ref\net9.0\System.Reflection.dll
 C:\Program Files\dotnet\packs\Microsoft.NETCore.App.Ref\9.0.2\ref\net9.0\System.Reflection.Emit.dll
diff --git a/demo_hard/obj/Debug/net9.0/Avalonia/resources b/demo_hard/obj/Debug/net9.0/Avalonia/resources
index 543f1db..7d556f2 100644
Binary files a/demo_hard/obj/Debug/net9.0/Avalonia/resources and b/demo_hard/obj/Debug/net9.0/Avalonia/resources differ
diff --git a/demo_hard/obj/Debug/net9.0/apphost.exe b/demo_hard/obj/Debug/net9.0/apphost.exe
index e39250e..d14ffb5 100644
Binary files a/demo_hard/obj/Debug/net9.0/apphost.exe and b/demo_hard/obj/Debug/net9.0/apphost.exe differ
diff --git a/demo_hard/obj/Debug/net9.0/demo_hard.AssemblyInfo.cs b/demo_hard/obj/Debug/net9.0/demo_hard.AssemblyInfo.cs
index 9bf0b88..4640289 100644
--- a/demo_hard/obj/Debug/net9.0/demo_hard.AssemblyInfo.cs
+++ b/demo_hard/obj/Debug/net9.0/demo_hard.AssemblyInfo.cs
@@ -13,7 +13,7 @@ using System.Reflection;
 [assembly: System.Reflection.AssemblyCompanyAttribute("demo_hard")]
 [assembly: System.Reflection.AssemblyConfigurationAttribute("Debug")]
 [assembly: System.Reflection.AssemblyFileVersionAttribute("1.0.0.0")]
-[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0+474cfc34bd9df61d876e8fbb651d8638dc01db9a")]
+[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0+156a9ed6bb53a76169eafb82e995c01d89a56817")]
 [assembly: System.Reflection.AssemblyProductAttribute("demo_hard")]
 [assembly: System.Reflection.AssemblyTitleAttribute("demo_hard")]
 [assembly: System.Reflection.AssemblyVersionAttribute("1.0.0.0")]
diff --git a/demo_hard/obj/Debug/net9.0/demo_hard.AssemblyInfoInputs.cache b/demo_hard/obj/Debug/net9.0/demo_hard.AssemblyInfoInputs.cache
index e4ce4b9..55df951 100644
--- a/demo_hard/obj/Debug/net9.0/demo_hard.AssemblyInfoInputs.cache
+++ b/demo_hard/obj/Debug/net9.0/demo_hard.AssemblyInfoInputs.cache
@@ -1 +1 @@
-268d25cb93c11a76a997999df85f8bd0b552c42c71329977e2c2727a2fc7b623
+812ad4f6e1371c563aeffa5b4bf990438482d87b5551f2810d09b0e13e09da16
diff --git a/demo_hard/obj/Debug/net9.0/demo_hard.assets.cache b/demo_hard/obj/Debug/net9.0/demo_hard.assets.cache
index 55b3c74..2a8fe7f 100644
Binary files a/demo_hard/obj/Debug/net9.0/demo_hard.assets.cache and b/demo_hard/obj/Debug/net9.0/demo_hard.assets.cache differ
diff --git a/demo_hard/obj/Debug/net9.0/demo_hard.csproj.AssemblyReference.cache b/demo_hard/obj/Debug/net9.0/demo_hard.csproj.AssemblyReference.cache
index 6c67a1b..3f884c7 100644
Binary files a/demo_hard/obj/Debug/net9.0/demo_hard.csproj.AssemblyReference.cache and b/demo_hard/obj/Debug/net9.0/demo_hard.csproj.AssemblyReference.cache differ
diff --git a/demo_hard/obj/Debug/net9.0/demo_hard.csproj.CoreCompileInputs.cache b/demo_hard/obj/Debug/net9.0/demo_hard.csproj.CoreCompileInputs.cache
index 18f807a..d46144e 100644
--- a/demo_hard/obj/Debug/net9.0/demo_hard.csproj.CoreCompileInputs.cache
+++ b/demo_hard/obj/Debug/net9.0/demo_hard.csproj.CoreCompileInputs.cache
@@ -1 +1 @@
-8f2b4c029a45ededea9ba19ced05047d31bbfb527a26f175d7285e3085cc6e48
+0bbac13ec88c23487d9db86ba7974427e4532f7c392dba1fdea7e096e6b18f90
diff --git a/demo_hard/obj/Debug/net9.0/demo_hard.csproj.FileListAbsolute.txt b/demo_hard/obj/Debug/net9.0/demo_hard.csproj.FileListAbsolute.txt
index fe7edc6..b154892 100644
--- a/demo_hard/obj/Debug/net9.0/demo_hard.csproj.FileListAbsolute.txt
+++ b/demo_hard/obj/Debug/net9.0/demo_hard.csproj.FileListAbsolute.txt
@@ -304,3 +304,7 @@ C:\Users\IVAN\RiderProjects\demo_hard\demo_hard\bin\Debug\net9.0\BouncyCastle.Cr
 C:\Users\IVAN\RiderProjects\demo_hard\demo_hard\bin\Debug\net9.0\itextsharp.dll
 C:\Users\IVAN\RiderProjects\demo_hard\demo_hard\bin\Debug\net9.0\DialogHost.Avalonia.dll
 C:\Users\IVAN\RiderProjects\demo_hard\demo_hard\bin\Debug\net9.0\MsBox.Avalonia.dll
+C:\Users\IVAN\RiderProjects\demo_hard\demo_hard\bin\Debug\net9.0\DynamicData.dll
+C:\Users\IVAN\RiderProjects\demo_hard\demo_hard\bin\Debug\net9.0\ReactiveUI.dll
+C:\Users\IVAN\RiderProjects\demo_hard\demo_hard\bin\Debug\net9.0\Splat.dll
+C:\Users\IVAN\RiderProjects\demo_hard\demo_hard\bin\Debug\net9.0\System.Reactive.dll
diff --git a/demo_hard/obj/Debug/net9.0/demo_hard.dll b/demo_hard/obj/Debug/net9.0/demo_hard.dll
index c0d2ab9..47550f9 100644
Binary files a/demo_hard/obj/Debug/net9.0/demo_hard.dll and b/demo_hard/obj/Debug/net9.0/demo_hard.dll differ
diff --git a/demo_hard/obj/Debug/net9.0/demo_hard.pdb b/demo_hard/obj/Debug/net9.0/demo_hard.pdb
index 9b2d3ef..cdfff64 100644
Binary files a/demo_hard/obj/Debug/net9.0/demo_hard.pdb and b/demo_hard/obj/Debug/net9.0/demo_hard.pdb differ
diff --git a/demo_hard/obj/Debug/net9.0/ref/demo_hard.dll b/demo_hard/obj/Debug/net9.0/ref/demo_hard.dll
index 1af27bd..7f58a73 100644
Binary files a/demo_hard/obj/Debug/net9.0/ref/demo_hard.dll and b/demo_hard/obj/Debug/net9.0/ref/demo_hard.dll differ
diff --git a/demo_hard/obj/Debug/net9.0/refint/Avalonia/demo_hard.dll b/demo_hard/obj/Debug/net9.0/refint/Avalonia/demo_hard.dll
index 1af27bd..7f58a73 100644
Binary files a/demo_hard/obj/Debug/net9.0/refint/Avalonia/demo_hard.dll and b/demo_hard/obj/Debug/net9.0/refint/Avalonia/demo_hard.dll differ
diff --git a/demo_hard/obj/Debug/net9.0/refint/demo_hard.dll b/demo_hard/obj/Debug/net9.0/refint/demo_hard.dll
index 455237b..a986928 100644
Binary files a/demo_hard/obj/Debug/net9.0/refint/demo_hard.dll and b/demo_hard/obj/Debug/net9.0/refint/demo_hard.dll differ
diff --git a/demo_hard/obj/demo_hard.csproj.nuget.dgspec.json b/demo_hard/obj/demo_hard.csproj.nuget.dgspec.json
index 6dbb425..1237154 100644
--- a/demo_hard/obj/demo_hard.csproj.nuget.dgspec.json
+++ b/demo_hard/obj/demo_hard.csproj.nuget.dgspec.json
@@ -89,6 +89,10 @@
               "target": "Package",
               "version": "[8.0.10, )"
             },
+            "ReactiveUI": {
+              "target": "Package",
+              "version": "[20.2.45, )"
+            },
             "iTextSharp": {
               "target": "Package",
               "version": "[5.5.13.4, )"
diff --git a/demo_hard/obj/demo_hard.csproj.nuget.g.targets b/demo_hard/obj/demo_hard.csproj.nuget.g.targets
index 6ce058e..c93349c 100644
--- a/demo_hard/obj/demo_hard.csproj.nuget.g.targets
+++ b/demo_hard/obj/demo_hard.csproj.nuget.g.targets
@@ -2,6 +2,7 @@
 <Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ImportGroup Condition=" '$(ExcludeRestorePackageImports)' != 'true' ">
     <Import Project="$(NuGetPackageRoot)xunit.core\2.9.3\build\xunit.core.targets" Condition="Exists('$(NuGetPackageRoot)xunit.core\2.9.3\build\xunit.core.targets')" />
+    <Import Project="$(NuGetPackageRoot)system.text.json\9.0.2\buildTransitive\net8.0\System.Text.Json.targets" Condition="Exists('$(NuGetPackageRoot)system.text.json\9.0.2\buildTransitive\net8.0\System.Text.Json.targets')" />
     <Import Project="$(NuGetPackageRoot)skiasharp.nativeassets.webassembly\2.88.8\buildTransitive\netstandard1.0\SkiaSharp.NativeAssets.WebAssembly.targets" Condition="Exists('$(NuGetPackageRoot)skiasharp.nativeassets.webassembly\2.88.8\buildTransitive\netstandard1.0\SkiaSharp.NativeAssets.WebAssembly.targets')" />
     <Import Project="$(NuGetPackageRoot)microsoft.extensions.logging.abstractions\8.0.2\buildTransitive\net6.0\Microsoft.Extensions.Logging.Abstractions.targets" Condition="Exists('$(NuGetPackageRoot)microsoft.extensions.logging.abstractions\8.0.2\buildTransitive\net6.0\Microsoft.Extensions.Logging.Abstractions.targets')" />
     <Import Project="$(NuGetPackageRoot)microsoft.extensions.options\8.0.2\buildTransitive\net6.0\Microsoft.Extensions.Options.targets" Condition="Exists('$(NuGetPackageRoot)microsoft.extensions.options\8.0.2\buildTransitive\net6.0\Microsoft.Extensions.Options.targets')" />
diff --git a/demo_hard/obj/project.assets.json b/demo_hard/obj/project.assets.json
index 4b0c68a..1058df4 100644
--- a/demo_hard/obj/project.assets.json
+++ b/demo_hard/obj/project.assets.json
@@ -366,6 +366,22 @@
           }
         }
       },
+      "DynamicData/9.1.2": {
+        "type": "package",
+        "dependencies": {
+          "System.Reactive": "6.0.1"
+        },
+        "compile": {
+          "lib/net8.0/DynamicData.dll": {
+            "related": ".xml"
+          }
+        },
+        "runtime": {
+          "lib/net8.0/DynamicData.dll": {
+            "related": ".xml"
+          }
+        }
+      },
       "HarfBuzzSharp/7.3.0.2": {
         "type": "package",
         "dependencies": {
@@ -1089,6 +1105,25 @@
           }
         }
       },
+      "ReactiveUI/20.2.45": {
+        "type": "package",
+        "dependencies": {
+          "DynamicData": "9.1.2",
+          "Splat": "15.3.1",
+          "System.ComponentModel.Annotations": "5.0.0",
+          "System.Text.Json": "9.0.2"
+        },
+        "compile": {
+          "lib/net9.0/ReactiveUI.dll": {
+            "related": ".xml"
+          }
+        },
+        "runtime": {
+          "lib/net9.0/ReactiveUI.dll": {
+            "related": ".xml"
+          }
+        }
+      },
       "SkiaSharp/2.88.8": {
         "type": "package",
         "dependencies": {
@@ -1187,6 +1222,19 @@
           }
         }
       },
+      "Splat/15.3.1": {
+        "type": "package",
+        "compile": {
+          "lib/net9.0/Splat.dll": {
+            "related": ".xml"
+          }
+        },
+        "runtime": {
+          "lib/net9.0/Splat.dll": {
+            "related": ".xml"
+          }
+        }
+      },
       "System.CodeDom/4.4.0": {
         "type": "package",
         "compile": {
@@ -1217,6 +1265,19 @@
           "buildTransitive/netcoreapp3.1/_._": {}
         }
       },
+      "System.ComponentModel.Annotations/5.0.0": {
+        "type": "package",
+        "compile": {
+          "ref/netstandard2.1/System.ComponentModel.Annotations.dll": {
+            "related": ".xml"
+          }
+        },
+        "runtime": {
+          "lib/netstandard2.1/System.ComponentModel.Annotations.dll": {
+            "related": ".xml"
+          }
+        }
+      },
       "System.Composition/6.0.0": {
         "type": "package",
         "dependencies": {
@@ -1337,6 +1398,22 @@
           "buildTransitive/net6.0/_._": {}
         }
       },
+      "System.Reactive/6.0.1": {
+        "type": "package",
+        "compile": {
+          "lib/net6.0/System.Reactive.dll": {
+            "related": ".xml"
+          }
+        },
+        "runtime": {
+          "lib/net6.0/System.Reactive.dll": {
+            "related": ".xml"
+          }
+        },
+        "build": {
+          "buildTransitive/net6.0/_._": {}
+        }
+      },
       "System.Reflection.Metadata/6.0.1": {
         "type": "package",
         "dependencies": {
@@ -1397,6 +1474,22 @@
           }
         }
       },
+      "System.Text.Json/9.0.2": {
+        "type": "package",
+        "compile": {
+          "lib/net9.0/System.Text.Json.dll": {
+            "related": ".xml"
+          }
+        },
+        "runtime": {
+          "lib/net9.0/System.Text.Json.dll": {
+            "related": ".xml"
+          }
+        },
+        "build": {
+          "buildTransitive/net8.0/System.Text.Json.targets": {}
+        }
+      },
       "System.Threading.Channels/6.0.0": {
         "type": "package",
         "compile": {
@@ -1984,6 +2077,30 @@
         "lib/netstandard2.0/DialogHost.Avalonia.xml"
       ]
     },
+    "DynamicData/9.1.2": {
+      "sha512": "KMomv26cewTHkHENVKEajxM4EaFJw6fwXGsrdlncq5cdJGnWBHYMTRMuu7y2vbbyb8/VdxkYHlDwZa8mupDrww==",
+      "type": "package",
+      "path": "dynamicdata/9.1.2",
+      "files": [
+        ".nupkg.metadata",
+        ".signature.p7s",
+        "LICENSE/LICENSE",
+        "README.md",
+        "dynamicdata.9.1.2.nupkg.sha512",
+        "dynamicdata.nuspec",
+        "lib/net462/DynamicData.dll",
+        "lib/net462/DynamicData.xml",
+        "lib/net6.0/DynamicData.dll",
+        "lib/net6.0/DynamicData.xml",
+        "lib/net7.0/DynamicData.dll",
+        "lib/net7.0/DynamicData.xml",
+        "lib/net8.0/DynamicData.dll",
+        "lib/net8.0/DynamicData.xml",
+        "lib/netstandard2.0/DynamicData.dll",
+        "lib/netstandard2.0/DynamicData.xml",
+        "logo.png"
+      ]
+    },
     "HarfBuzzSharp/7.3.0.2": {
       "sha512": "0tCd6HyCmNsX/DniCp2b00fo0xPbdNwKOs9BxxyT8oOOuMlWjcSFwzONKyeckCKVBFEsbSmsAHPDTqxoSDwZMg==",
       "type": "package",
@@ -3164,6 +3281,58 @@
         "postgresql.png"
       ]
     },
+    "ReactiveUI/20.2.45": {
+      "sha512": "1wyThKtWNi0naldJBYcKcZWib2POzS+fVX28apHGTAl+Gd5iLzoDSlItvC22Yiy+hc8TB7KnkW47kofuXmBhmg==",
+      "type": "package",
+      "path": "reactiveui/20.2.45",
+      "files": [
+        ".nupkg.metadata",
+        ".signature.p7s",
+        "LICENSE/LICENSE",
+        "README.md",
+        "lib/net462/ReactiveUI.dll",
+        "lib/net462/ReactiveUI.xml",
+        "lib/net472/ReactiveUI.dll",
+        "lib/net472/ReactiveUI.xml",
+        "lib/net8.0-android34.0/ReactiveUI.dll",
+        "lib/net8.0-android34.0/ReactiveUI.xml",
+        "lib/net8.0-ios18.0/ReactiveUI.dll",
+        "lib/net8.0-ios18.0/ReactiveUI.xml",
+        "lib/net8.0-maccatalyst18.0/ReactiveUI.dll",
+        "lib/net8.0-maccatalyst18.0/ReactiveUI.xml",
+        "lib/net8.0-macos15.0/ReactiveUI.dll",
+        "lib/net8.0-macos15.0/ReactiveUI.xml",
+        "lib/net8.0-tvos18.0/ReactiveUI.dll",
+        "lib/net8.0-tvos18.0/ReactiveUI.xml",
+        "lib/net8.0-windows10.0.17763/ReactiveUI.dll",
+        "lib/net8.0-windows10.0.17763/ReactiveUI.xml",
+        "lib/net8.0-windows10.0.19041/ReactiveUI.dll",
+        "lib/net8.0-windows10.0.19041/ReactiveUI.xml",
+        "lib/net8.0/ReactiveUI.dll",
+        "lib/net8.0/ReactiveUI.xml",
+        "lib/net9.0-android35.0/ReactiveUI.dll",
+        "lib/net9.0-android35.0/ReactiveUI.xml",
+        "lib/net9.0-ios18.0/ReactiveUI.dll",
+        "lib/net9.0-ios18.0/ReactiveUI.xml",
+        "lib/net9.0-maccatalyst18.0/ReactiveUI.dll",
+        "lib/net9.0-maccatalyst18.0/ReactiveUI.xml",
+        "lib/net9.0-macos15.0/ReactiveUI.dll",
+        "lib/net9.0-macos15.0/ReactiveUI.xml",
+        "lib/net9.0-tvos18.0/ReactiveUI.dll",
+        "lib/net9.0-tvos18.0/ReactiveUI.xml",
+        "lib/net9.0-windows10.0.17763/ReactiveUI.dll",
+        "lib/net9.0-windows10.0.17763/ReactiveUI.xml",
+        "lib/net9.0-windows10.0.19041/ReactiveUI.dll",
+        "lib/net9.0-windows10.0.19041/ReactiveUI.xml",
+        "lib/net9.0/ReactiveUI.dll",
+        "lib/net9.0/ReactiveUI.xml",
+        "lib/netstandard2.0/ReactiveUI.dll",
+        "lib/netstandard2.0/ReactiveUI.xml",
+        "logo.png",
+        "reactiveui.20.2.45.nupkg.sha512",
+        "reactiveui.nuspec"
+      ]
+    },
     "SkiaSharp/2.88.8": {
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       "type": "package",
@@ -3338,6 +3507,26 @@
         "skiasharp.nativeassets.win32.nuspec"
       ]
     },
+    "Splat/15.3.1": {
+      "sha512": "zyu98Mwp8gTi3MlS6EGtvcacmw5W/qA4/h/DVeZ28A1dR6mcM628ujHck6LK5SM6LwroR5LzBonWgeFtwo2Afg==",
+      "type": "package",
+      "path": "splat/15.3.1",
+      "files": [
+        ".nupkg.metadata",
+        ".signature.p7s",
+        "LICENSE/LICENSE",
+        "README.md",
+        "lib/net8.0/Splat.dll",
+        "lib/net8.0/Splat.xml",
+        "lib/net9.0/Splat.dll",
+        "lib/net9.0/Splat.xml",
+        "lib/netstandard2.0/Splat.dll",
+        "lib/netstandard2.0/Splat.xml",
+        "logo.png",
+        "splat.15.3.1.nupkg.sha512",
+        "splat.nuspec"
+      ]
+    },
     "System.CodeDom/4.4.0": {
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       "type": "package",
@@ -3382,6 +3571,96 @@
         "useSharedDesignerContext.txt"
       ]
     },
+    "System.ComponentModel.Annotations/5.0.0": {
+      "sha512": "dMkqfy2el8A8/I76n2Hi1oBFEbG1SfxD2l5nhwXV3XjlnOmwxJlQbYpJH4W51odnU9sARCSAgv7S3CyAFMkpYg==",
+      "type": "package",
+      "path": "system.componentmodel.annotations/5.0.0",
+      "files": [
+        ".nupkg.metadata",
+        ".signature.p7s",
+        "Icon.png",
+        "LICENSE.TXT",
+        "THIRD-PARTY-NOTICES.TXT",
+        "lib/MonoAndroid10/_._",
+        "lib/MonoTouch10/_._",
+        "lib/net45/_._",
+        "lib/net461/System.ComponentModel.Annotations.dll",
+        "lib/netcore50/System.ComponentModel.Annotations.dll",
+        "lib/netstandard1.4/System.ComponentModel.Annotations.dll",
+        "lib/netstandard2.0/System.ComponentModel.Annotations.dll",
+        "lib/netstandard2.1/System.ComponentModel.Annotations.dll",
+        "lib/netstandard2.1/System.ComponentModel.Annotations.xml",
+        "lib/portable-net45+win8/_._",
+        "lib/win8/_._",
+        "lib/xamarinios10/_._",
+        "lib/xamarinmac20/_._",
+        "lib/xamarintvos10/_._",
+        "lib/xamarinwatchos10/_._",
+        "ref/MonoAndroid10/_._",
+        "ref/MonoTouch10/_._",
+        "ref/net45/_._",
+        "ref/net461/System.ComponentModel.Annotations.dll",
+        "ref/net461/System.ComponentModel.Annotations.xml",
+        "ref/netcore50/System.ComponentModel.Annotations.dll",
+        "ref/netcore50/System.ComponentModel.Annotations.xml",
+        "ref/netcore50/de/System.ComponentModel.Annotations.xml",
+        "ref/netcore50/es/System.ComponentModel.Annotations.xml",
+        "ref/netcore50/fr/System.ComponentModel.Annotations.xml",
+        "ref/netcore50/it/System.ComponentModel.Annotations.xml",
+        "ref/netcore50/ja/System.ComponentModel.Annotations.xml",
+        "ref/netcore50/ko/System.ComponentModel.Annotations.xml",
+        "ref/netcore50/ru/System.ComponentModel.Annotations.xml",
+        "ref/netcore50/zh-hans/System.ComponentModel.Annotations.xml",
+        "ref/netcore50/zh-hant/System.ComponentModel.Annotations.xml",
+        "ref/netstandard1.1/System.ComponentModel.Annotations.dll",
+        "ref/netstandard1.1/System.ComponentModel.Annotations.xml",
+        "ref/netstandard1.1/de/System.ComponentModel.Annotations.xml",
+        "ref/netstandard1.1/es/System.ComponentModel.Annotations.xml",
+        "ref/netstandard1.1/fr/System.ComponentModel.Annotations.xml",
+        "ref/netstandard1.1/it/System.ComponentModel.Annotations.xml",
+        "ref/netstandard1.1/ja/System.ComponentModel.Annotations.xml",
+        "ref/netstandard1.1/ko/System.ComponentModel.Annotations.xml",
+        "ref/netstandard1.1/ru/System.ComponentModel.Annotations.xml",
+        "ref/netstandard1.1/zh-hans/System.ComponentModel.Annotations.xml",
+        "ref/netstandard1.1/zh-hant/System.ComponentModel.Annotations.xml",
+        "ref/netstandard1.3/System.ComponentModel.Annotations.dll",
+        "ref/netstandard1.3/System.ComponentModel.Annotations.xml",
+        "ref/netstandard1.3/de/System.ComponentModel.Annotations.xml",
+        "ref/netstandard1.3/es/System.ComponentModel.Annotations.xml",
+        "ref/netstandard1.3/fr/System.ComponentModel.Annotations.xml",
+        "ref/netstandard1.3/it/System.ComponentModel.Annotations.xml",
+        "ref/netstandard1.3/ja/System.ComponentModel.Annotations.xml",
+        "ref/netstandard1.3/ko/System.ComponentModel.Annotations.xml",
+        "ref/netstandard1.3/ru/System.ComponentModel.Annotations.xml",
+        "ref/netstandard1.3/zh-hans/System.ComponentModel.Annotations.xml",
+        "ref/netstandard1.3/zh-hant/System.ComponentModel.Annotations.xml",
+        "ref/netstandard1.4/System.ComponentModel.Annotations.dll",
+        "ref/netstandard1.4/System.ComponentModel.Annotations.xml",
+        "ref/netstandard1.4/de/System.ComponentModel.Annotations.xml",
+        "ref/netstandard1.4/es/System.ComponentModel.Annotations.xml",
+        "ref/netstandard1.4/fr/System.ComponentModel.Annotations.xml",
+        "ref/netstandard1.4/it/System.ComponentModel.Annotations.xml",
+        "ref/netstandard1.4/ja/System.ComponentModel.Annotations.xml",
+        "ref/netstandard1.4/ko/System.ComponentModel.Annotations.xml",
+        "ref/netstandard1.4/ru/System.ComponentModel.Annotations.xml",
+        "ref/netstandard1.4/zh-hans/System.ComponentModel.Annotations.xml",
+        "ref/netstandard1.4/zh-hant/System.ComponentModel.Annotations.xml",
+        "ref/netstandard2.0/System.ComponentModel.Annotations.dll",
+        "ref/netstandard2.0/System.ComponentModel.Annotations.xml",
+        "ref/netstandard2.1/System.ComponentModel.Annotations.dll",
+        "ref/netstandard2.1/System.ComponentModel.Annotations.xml",
+        "ref/portable-net45+win8/_._",
+        "ref/win8/_._",
+        "ref/xamarinios10/_._",
+        "ref/xamarinmac20/_._",
+        "ref/xamarintvos10/_._",
+        "ref/xamarinwatchos10/_._",
+        "system.componentmodel.annotations.5.0.0.nupkg.sha512",
+        "system.componentmodel.annotations.nuspec",
+        "useSharedDesignerContext.txt",
+        "version.txt"
+      ]
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@@ -3543,6 +3822,34 @@
         "useSharedDesignerContext.txt"
       ]
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+    "System.Reactive/6.0.1": {
+      "sha512": "rHaWtKDwCi9qJ3ObKo8LHPMuuwv33YbmQi7TcUK1C264V3MFnOr5Im7QgCTdLniztP3GJyeiSg5x8NqYJFqRmg==",
+      "type": "package",
+      "path": "system.reactive/6.0.1",
+      "files": [
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+        ".signature.p7s",
+        "build/net6.0-windows10.0.19041/_._",
+        "build/net6.0/_._",
+        "buildTransitive/net6.0-windows10.0.19041/_._",
+        "buildTransitive/net6.0/_._",
+        "icon.png",
+        "lib/net472/System.Reactive.dll",
+        "lib/net472/System.Reactive.xml",
+        "lib/net6.0-windows10.0.19041/System.Reactive.dll",
+        "lib/net6.0-windows10.0.19041/System.Reactive.xml",
+        "lib/net6.0/System.Reactive.dll",
+        "lib/net6.0/System.Reactive.xml",
+        "lib/netstandard2.0/System.Reactive.dll",
+        "lib/netstandard2.0/System.Reactive.xml",
+        "lib/uap10.0.18362/System.Reactive.dll",
+        "lib/uap10.0.18362/System.Reactive.pri",
+        "lib/uap10.0.18362/System.Reactive.xml",
+        "readme.md",
+        "system.reactive.6.0.1.nupkg.sha512",
+        "system.reactive.nuspec"
+      ]
+    },
     "System.Reflection.Metadata/6.0.1": {
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       "type": "package",
@@ -3630,6 +3937,77 @@
         "useSharedDesignerContext.txt"
       ]
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+    "System.Text.Json/9.0.2": {
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+      "type": "package",
+      "path": "system.text.json/9.0.2",
+      "files": [
+        ".nupkg.metadata",
+        ".signature.p7s",
+        "Icon.png",
+        "LICENSE.TXT",
+        "PACKAGE.md",
+        "THIRD-PARTY-NOTICES.TXT",
+        "analyzers/dotnet/roslyn3.11/cs/System.Text.Json.SourceGeneration.dll",
+        "analyzers/dotnet/roslyn3.11/cs/cs/System.Text.Json.SourceGeneration.resources.dll",
+        "analyzers/dotnet/roslyn3.11/cs/de/System.Text.Json.SourceGeneration.resources.dll",
+        "analyzers/dotnet/roslyn3.11/cs/es/System.Text.Json.SourceGeneration.resources.dll",
+        "analyzers/dotnet/roslyn3.11/cs/fr/System.Text.Json.SourceGeneration.resources.dll",
+        "analyzers/dotnet/roslyn3.11/cs/it/System.Text.Json.SourceGeneration.resources.dll",
+        "analyzers/dotnet/roslyn3.11/cs/ja/System.Text.Json.SourceGeneration.resources.dll",
+        "analyzers/dotnet/roslyn3.11/cs/ko/System.Text.Json.SourceGeneration.resources.dll",
+        "analyzers/dotnet/roslyn3.11/cs/pl/System.Text.Json.SourceGeneration.resources.dll",
+        "analyzers/dotnet/roslyn3.11/cs/pt-BR/System.Text.Json.SourceGeneration.resources.dll",
+        "analyzers/dotnet/roslyn3.11/cs/ru/System.Text.Json.SourceGeneration.resources.dll",
+        "analyzers/dotnet/roslyn3.11/cs/tr/System.Text.Json.SourceGeneration.resources.dll",
+        "analyzers/dotnet/roslyn3.11/cs/zh-Hans/System.Text.Json.SourceGeneration.resources.dll",
+        "analyzers/dotnet/roslyn3.11/cs/zh-Hant/System.Text.Json.SourceGeneration.resources.dll",
+        "analyzers/dotnet/roslyn4.0/cs/System.Text.Json.SourceGeneration.dll",
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+        "analyzers/dotnet/roslyn4.0/cs/tr/System.Text.Json.SourceGeneration.resources.dll",
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+        "analyzers/dotnet/roslyn4.4/cs/it/System.Text.Json.SourceGeneration.resources.dll",
+        "analyzers/dotnet/roslyn4.4/cs/ja/System.Text.Json.SourceGeneration.resources.dll",
+        "analyzers/dotnet/roslyn4.4/cs/ko/System.Text.Json.SourceGeneration.resources.dll",
+        "analyzers/dotnet/roslyn4.4/cs/pl/System.Text.Json.SourceGeneration.resources.dll",
+        "analyzers/dotnet/roslyn4.4/cs/pt-BR/System.Text.Json.SourceGeneration.resources.dll",
+        "analyzers/dotnet/roslyn4.4/cs/ru/System.Text.Json.SourceGeneration.resources.dll",
+        "analyzers/dotnet/roslyn4.4/cs/tr/System.Text.Json.SourceGeneration.resources.dll",
+        "analyzers/dotnet/roslyn4.4/cs/zh-Hans/System.Text.Json.SourceGeneration.resources.dll",
+        "analyzers/dotnet/roslyn4.4/cs/zh-Hant/System.Text.Json.SourceGeneration.resources.dll",
+        "buildTransitive/net461/System.Text.Json.targets",
+        "buildTransitive/net462/System.Text.Json.targets",
+        "buildTransitive/net8.0/System.Text.Json.targets",
+        "buildTransitive/netcoreapp2.0/System.Text.Json.targets",
+        "buildTransitive/netstandard2.0/System.Text.Json.targets",
+        "lib/net462/System.Text.Json.dll",
+        "lib/net462/System.Text.Json.xml",
+        "lib/net8.0/System.Text.Json.dll",
+        "lib/net8.0/System.Text.Json.xml",
+        "lib/net9.0/System.Text.Json.dll",
+        "lib/net9.0/System.Text.Json.xml",
+        "lib/netstandard2.0/System.Text.Json.dll",
+        "lib/netstandard2.0/System.Text.Json.xml",
+        "system.text.json.9.0.2.nupkg.sha512",
+        "system.text.json.nuspec",
+        "useSharedDesignerContext.txt"
+      ]
+    },
     "System.Threading.Channels/6.0.0": {
       "sha512": "TY8/9+tI0mNaUMgntOxxaq2ndTkdXqLSxvPmas7XEqOlv9lQtB7wLjYGd756lOaO7Dvb5r/WXhluM+0Xe87v5Q==",
       "type": "package",
@@ -3803,6 +4181,7 @@
       "Microsoft.EntityFrameworkCore >= 8.0.10",
       "Microsoft.EntityFrameworkCore.Design >= 8.0.10",
       "Npgsql.EntityFrameworkCore.PostgreSQL >= 8.0.10",
+      "ReactiveUI >= 20.2.45",
       "iTextSharp >= 5.5.13.4",
       "xunit >= 2.9.3"
     ]
@@ -3896,6 +4275,10 @@
             "target": "Package",
             "version": "[8.0.10, )"
           },
+          "ReactiveUI": {
+            "target": "Package",
+            "version": "[20.2.45, )"
+          },
           "iTextSharp": {
             "target": "Package",
             "version": "[5.5.13.4, )"
diff --git a/demo_hard/obj/project.nuget.cache b/demo_hard/obj/project.nuget.cache
index 4262531..7bcbb7c 100644
--- a/demo_hard/obj/project.nuget.cache
+++ b/demo_hard/obj/project.nuget.cache
@@ -1,6 +1,6 @@
 {
   "version": 2,
-  "dgSpecHash": "V6Z95Xb+ZCs=",
+  "dgSpecHash": "rJUIf6Qta8g=",
   "success": true,
   "projectFilePath": "C:\\Users\\IVAN\\RiderProjects\\demo_hard\\demo_hard\\demo_hard.csproj",
   "expectedPackageFiles": [
@@ -22,6 +22,7 @@
     "C:\\Users\\IVAN\\.nuget\\packages\\avalonia.x11\\11.2.1\\avalonia.x11.11.2.1.nupkg.sha512",
     "C:\\Users\\IVAN\\.nuget\\packages\\bouncycastle.cryptography\\2.4.0\\bouncycastle.cryptography.2.4.0.nupkg.sha512",
     "C:\\Users\\IVAN\\.nuget\\packages\\dialoghost.avalonia\\0.8.1\\dialoghost.avalonia.0.8.1.nupkg.sha512",
+    "C:\\Users\\IVAN\\.nuget\\packages\\dynamicdata\\9.1.2\\dynamicdata.9.1.2.nupkg.sha512",
     "C:\\Users\\IVAN\\.nuget\\packages\\harfbuzzsharp\\7.3.0.2\\harfbuzzsharp.7.3.0.2.nupkg.sha512",
     "C:\\Users\\IVAN\\.nuget\\packages\\harfbuzzsharp.nativeassets.linux\\7.3.0.2\\harfbuzzsharp.nativeassets.linux.7.3.0.2.nupkg.sha512",
     "C:\\Users\\IVAN\\.nuget\\packages\\harfbuzzsharp.nativeassets.macos\\7.3.0.2\\harfbuzzsharp.nativeassets.macos.7.3.0.2.nupkg.sha512",
@@ -55,13 +56,16 @@
     "C:\\Users\\IVAN\\.nuget\\packages\\mono.texttemplating\\2.2.1\\mono.texttemplating.2.2.1.nupkg.sha512",
     "C:\\Users\\IVAN\\.nuget\\packages\\npgsql\\8.0.5\\npgsql.8.0.5.nupkg.sha512",
     "C:\\Users\\IVAN\\.nuget\\packages\\npgsql.entityframeworkcore.postgresql\\8.0.10\\npgsql.entityframeworkcore.postgresql.8.0.10.nupkg.sha512",
+    "C:\\Users\\IVAN\\.nuget\\packages\\reactiveui\\20.2.45\\reactiveui.20.2.45.nupkg.sha512",
     "C:\\Users\\IVAN\\.nuget\\packages\\skiasharp\\2.88.8\\skiasharp.2.88.8.nupkg.sha512",
     "C:\\Users\\IVAN\\.nuget\\packages\\skiasharp.nativeassets.linux\\2.88.8\\skiasharp.nativeassets.linux.2.88.8.nupkg.sha512",
     "C:\\Users\\IVAN\\.nuget\\packages\\skiasharp.nativeassets.macos\\2.88.8\\skiasharp.nativeassets.macos.2.88.8.nupkg.sha512",
     "C:\\Users\\IVAN\\.nuget\\packages\\skiasharp.nativeassets.webassembly\\2.88.8\\skiasharp.nativeassets.webassembly.2.88.8.nupkg.sha512",
     "C:\\Users\\IVAN\\.nuget\\packages\\skiasharp.nativeassets.win32\\2.88.8\\skiasharp.nativeassets.win32.2.88.8.nupkg.sha512",
+    "C:\\Users\\IVAN\\.nuget\\packages\\splat\\15.3.1\\splat.15.3.1.nupkg.sha512",
     "C:\\Users\\IVAN\\.nuget\\packages\\system.codedom\\4.4.0\\system.codedom.4.4.0.nupkg.sha512",
     "C:\\Users\\IVAN\\.nuget\\packages\\system.collections.immutable\\6.0.0\\system.collections.immutable.6.0.0.nupkg.sha512",
+    "C:\\Users\\IVAN\\.nuget\\packages\\system.componentmodel.annotations\\5.0.0\\system.componentmodel.annotations.5.0.0.nupkg.sha512",
     "C:\\Users\\IVAN\\.nuget\\packages\\system.composition\\6.0.0\\system.composition.6.0.0.nupkg.sha512",
     "C:\\Users\\IVAN\\.nuget\\packages\\system.composition.attributedmodel\\6.0.0\\system.composition.attributedmodel.6.0.0.nupkg.sha512",
     "C:\\Users\\IVAN\\.nuget\\packages\\system.composition.convention\\6.0.0\\system.composition.convention.6.0.0.nupkg.sha512",
@@ -69,9 +73,11 @@
     "C:\\Users\\IVAN\\.nuget\\packages\\system.composition.runtime\\6.0.0\\system.composition.runtime.6.0.0.nupkg.sha512",
     "C:\\Users\\IVAN\\.nuget\\packages\\system.composition.typedparts\\6.0.0\\system.composition.typedparts.6.0.0.nupkg.sha512",
     "C:\\Users\\IVAN\\.nuget\\packages\\system.io.pipelines\\8.0.0\\system.io.pipelines.8.0.0.nupkg.sha512",
+    "C:\\Users\\IVAN\\.nuget\\packages\\system.reactive\\6.0.1\\system.reactive.6.0.1.nupkg.sha512",
     "C:\\Users\\IVAN\\.nuget\\packages\\system.reflection.metadata\\6.0.1\\system.reflection.metadata.6.0.1.nupkg.sha512",
     "C:\\Users\\IVAN\\.nuget\\packages\\system.runtime.compilerservices.unsafe\\6.0.0\\system.runtime.compilerservices.unsafe.6.0.0.nupkg.sha512",
     "C:\\Users\\IVAN\\.nuget\\packages\\system.text.encoding.codepages\\6.0.0\\system.text.encoding.codepages.6.0.0.nupkg.sha512",
+    "C:\\Users\\IVAN\\.nuget\\packages\\system.text.json\\9.0.2\\system.text.json.9.0.2.nupkg.sha512",
     "C:\\Users\\IVAN\\.nuget\\packages\\system.threading.channels\\6.0.0\\system.threading.channels.6.0.0.nupkg.sha512",
     "C:\\Users\\IVAN\\.nuget\\packages\\tmds.dbus.protocol\\0.20.0\\tmds.dbus.protocol.0.20.0.nupkg.sha512",
     "C:\\Users\\IVAN\\.nuget\\packages\\xunit\\2.9.3\\xunit.2.9.3.nupkg.sha512",
diff --git a/demo_hard/obj/project.packagespec.json b/demo_hard/obj/project.packagespec.json
index bc8538f..d9734e9 100644
--- a/demo_hard/obj/project.packagespec.json
+++ b/demo_hard/obj/project.packagespec.json
@@ -1 +1 @@
-"restore":{"projectUniqueName":"C:\\Users\\IVAN\\RiderProjects\\demo_hard\\demo_hard\\demo_hard.csproj","projectName":"demo_hard","projectPath":"C:\\Users\\IVAN\\RiderProjects\\demo_hard\\demo_hard\\demo_hard.csproj","outputPath":"C:\\Users\\IVAN\\RiderProjects\\demo_hard\\demo_hard\\obj\\","projectStyle":"PackageReference","fallbackFolders":["C:\\Program Files (x86)\\Microsoft Visual Studio\\Shared\\NuGetPackages"],"originalTargetFrameworks":["net9.0"],"sources":{"C:\\Program Files (x86)\\Microsoft SDKs\\NuGetPackages\\":{},"C:\\Program Files\\dotnet\\library-packs":{},"https://api.nuget.org/v3/index.json":{}},"frameworks":{"net9.0":{"targetAlias":"net9.0","projectReferences":{}}},"warningProperties":{"warnAsError":["NU1605"]},"restoreAuditProperties":{"enableAudit":"true","auditLevel":"low","auditMode":"direct"},"SdkAnalysisLevel":"9.0.200"}"frameworks":{"net9.0":{"targetAlias":"net9.0","dependencies":{"Avalonia":{"target":"Package","version":"[11.2.1, )"},"Avalonia.Desktop":{"target":"Package","version":"[11.2.1, )"},"Avalonia.Diagnostics":{"target":"Package","version":"[11.2.1, )"},"Avalonia.Fonts.Inter":{"target":"Package","version":"[11.2.1, )"},"Avalonia.Themes.Fluent":{"target":"Package","version":"[11.2.1, )"},"MessageBox.Avalonia":{"target":"Package","version":"[3.2.0, )"},"Microsoft.EntityFrameworkCore":{"target":"Package","version":"[8.0.10, )"},"Microsoft.EntityFrameworkCore.Design":{"include":"Runtime, Build, Native, ContentFiles, Analyzers, BuildTransitive","suppressParent":"All","target":"Package","version":"[8.0.10, )"},"Npgsql.EntityFrameworkCore.PostgreSQL":{"target":"Package","version":"[8.0.10, )"},"iTextSharp":{"target":"Package","version":"[5.5.13.4, )"},"xunit":{"target":"Package","version":"[2.9.3, )"}},"imports":["net461","net462","net47","net471","net472","net48","net481"],"assetTargetFallback":true,"warn":true,"frameworkReferences":{"Microsoft.NETCore.App":{"privateAssets":"all"}},"runtimeIdentifierGraphPath":"C:\\Program Files\\dotnet\\sdk\\9.0.200/PortableRuntimeIdentifierGraph.json"}}
\ No newline at end of file
+"restore":{"projectUniqueName":"C:\\Users\\IVAN\\RiderProjects\\demo_hard\\demo_hard\\demo_hard.csproj","projectName":"demo_hard","projectPath":"C:\\Users\\IVAN\\RiderProjects\\demo_hard\\demo_hard\\demo_hard.csproj","outputPath":"C:\\Users\\IVAN\\RiderProjects\\demo_hard\\demo_hard\\obj\\","projectStyle":"PackageReference","fallbackFolders":["C:\\Program Files (x86)\\Microsoft Visual Studio\\Shared\\NuGetPackages"],"originalTargetFrameworks":["net9.0"],"sources":{"C:\\Program Files (x86)\\Microsoft SDKs\\NuGetPackages\\":{},"C:\\Program Files\\dotnet\\library-packs":{},"https://api.nuget.org/v3/index.json":{}},"frameworks":{"net9.0":{"targetAlias":"net9.0","projectReferences":{}}},"warningProperties":{"warnAsError":["NU1605"]},"restoreAuditProperties":{"enableAudit":"true","auditLevel":"low","auditMode":"direct"},"SdkAnalysisLevel":"9.0.200"}"frameworks":{"net9.0":{"targetAlias":"net9.0","dependencies":{"Avalonia":{"target":"Package","version":"[11.2.1, )"},"Avalonia.Desktop":{"target":"Package","version":"[11.2.1, )"},"Avalonia.Diagnostics":{"target":"Package","version":"[11.2.1, )"},"Avalonia.Fonts.Inter":{"target":"Package","version":"[11.2.1, )"},"Avalonia.Themes.Fluent":{"target":"Package","version":"[11.2.1, )"},"MessageBox.Avalonia":{"target":"Package","version":"[3.2.0, )"},"Microsoft.EntityFrameworkCore":{"target":"Package","version":"[8.0.10, )"},"Microsoft.EntityFrameworkCore.Design":{"include":"Runtime, Build, Native, ContentFiles, Analyzers, BuildTransitive","suppressParent":"All","target":"Package","version":"[8.0.10, )"},"Npgsql.EntityFrameworkCore.PostgreSQL":{"target":"Package","version":"[8.0.10, )"},"ReactiveUI":{"target":"Package","version":"[20.2.45, )"},"iTextSharp":{"target":"Package","version":"[5.5.13.4, )"},"xunit":{"target":"Package","version":"[2.9.3, )"}},"imports":["net461","net462","net47","net471","net472","net48","net481"],"assetTargetFallback":true,"warn":true,"frameworkReferences":{"Microsoft.NETCore.App":{"privateAssets":"all"}},"runtimeIdentifierGraphPath":"C:\\Program Files\\dotnet\\sdk\\9.0.200/PortableRuntimeIdentifierGraph.json"}}
\ No newline at end of file
diff --git a/demo_hard/obj/rider.project.model.nuget.info b/demo_hard/obj/rider.project.model.nuget.info
index 20cc087..9178972 100644
--- a/demo_hard/obj/rider.project.model.nuget.info
+++ b/demo_hard/obj/rider.project.model.nuget.info
@@ -1 +1 @@
-17452715769561693
\ No newline at end of file
+17452753038636502
\ No newline at end of file
diff --git a/demo_hard/obj/rider.project.restore.info b/demo_hard/obj/rider.project.restore.info
index 20cc087..d32e49a 100644
--- a/demo_hard/obj/rider.project.restore.info
+++ b/demo_hard/obj/rider.project.restore.info
@@ -1 +1 @@
-17452715769561693
\ No newline at end of file
+17452753050856052
\ No newline at end of file