first

AdminWindow.axaml

@@ -0,0 +1,46 @@
+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
+        x:Class="kursovaya.AdminWindow"
+        x:CompileBindings="False"
+        Title="AdminWindow">
+        <Border Background="Bisque">
+                <DockPanel>
+                        <StackPanel DockPanel.Dock="Top" Orientation="Horizontal" Background="LightBlue" Height="30">
+                                <Button DockPanel.Dock="Left" Content="Назад" Click="ButtonBack_OnClick" Width="100" HorizontalAlignment="Left" Foreground="Black" Background="LightGray"/>
+                                <ComboBox x:Name="GroupComboBox" HorizontalAlignment="Center"/>
+                                <ComboBox x:Name="DisciplineComboBox" HorizontalAlignment="Center"/>
+                                <ComboBox x:Name="TeacherComboBox" HorizontalAlignment="Center"/>
+                                <!-- <Button Content="Просмотр аттестации" Foreground="Black"/> -->
+                        </StackPanel>
+                        <Grid DockPanel.Dock="Top" ColumnDefinitions="3*,1*,3*" Background="LightGray" Height="35">
+                                <TextBlock Grid.Column="0" Text="Дисциплина" VerticalAlignment="Center" Margin="5" Foreground="Black" FontWeight="Bold"/>
+                                <TextBlock Grid.Column="1" Text="Группа" VerticalAlignment="Center" Margin="5" Foreground="Black" FontWeight="Bold"/>
+                                <TextBlock Grid.Column="2" Text="Преподаватель" VerticalAlignment="Center" Margin="5" Foreground="Black" FontWeight="Bold"/>
+                        </Grid>
+                        <ScrollViewer>
+                            <ItemsControl x:Name="FlatGrid" ItemsSource="{Binding DisciplineGroupTeachers}">
+                                <ItemsControl.ItemTemplate>
+                                    <DataTemplate>
+                                        <Grid ColumnDefinitions="3*,1*,3*" Margin="2" Background="LightGray" Height="40">
+                                            <Border Grid.Column="0" BorderBrush="Black" BorderThickness="0.5">
+                                                <TextBlock Text="{Binding DisciplineName}" VerticalAlignment="Center" Margin="10,0" Foreground="Black"/>
+                                            </Border>
+
+                                            <Border Grid.Column="1" BorderBrush="Black" BorderThickness="0.5">
+                                                <TextBlock Text="{Binding GroupId}" VerticalAlignment="Center" HorizontalAlignment="Center" Foreground="Black"/>
+                                            </Border>
+                                            
+                                            <Border Grid.Column="2" BorderBrush="Black" BorderThickness="0.5">
+                                                <TextBlock Text="{Binding TeacherFio}" VerticalAlignment="Center" Margin="10,0" Foreground="Black"/>
+                                            </Border>
+                                        </Grid>
+                                    </DataTemplate>
+                                </ItemsControl.ItemTemplate>
+                            </ItemsControl>
+                        </ScrollViewer>
+                </DockPanel>
+        </Border>
+</Window>

AdminWindow.axaml.cs

@@ -0,0 +1,70 @@
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+using Avalonia.Markup.Xaml;
+using kursovaya.Models;
+
+namespace kursovaya;
+
+public partial class AdminWindow : Window
+{
+    List<Discipline> Disciplines = new List<Discipline>();
+    List<Group> Groups = new List<Group>();
+    List<Teacher> Teachers = new List<Teacher>();
+    ObservableCollection<DisciplineGroupTeacher> DisciplineGroupTeachers = new ObservableCollection<DisciplineGroupTeacher>();
+    public AdminWindow()
+    {
+        InitializeComponent();
+        
+        var ctx = new DatabaseContext();
+
+        Disciplines = ctx.Disciplines.ToList();
+        Groups = ctx.Groups.ToList();
+        Teachers = ctx.Teachers.ToList();
+
+        var disciplineTeachers = ctx.DisciplineTeachers.ToList();
+
+        foreach (DisciplineTeacher disciplineTeacher in disciplineTeachers)
+        {
+            //todo
+            //var group = 
+            var teacher = ctx.Teachers.FirstOrDefault(t => t.Id == disciplineTeacher.IdTeacher);
+            var discipline = ctx.Disciplines.FirstOrDefault(d => d.Id == disciplineTeacher.IdDiscipline);
+            DisciplineGroupTeachers.Add(new DisciplineGroupTeacher(){Teacher = teacher, Discipline = discipline, Group = new Group() {Id = 777, YearAdmission = 777}});
+        }
+        
+        GroupComboBox.ItemsSource = Groups.Select(g => g.Id);
+        DisciplineComboBox.ItemsSource = Disciplines.Select(d => d.Name);
+        TeacherComboBox.ItemsSource = Teachers.Select(t => t.Fio);
+        FlatGrid.ItemsSource = DisciplineGroupTeachers;
+
+    }
+
+    public class DisciplineGroupTeacher()
+    {
+        public Group Group { get; set; }
+        public Discipline Discipline { get; set; }
+        public Teacher Teacher { get; set; }
+
+        public string DisciplineName
+        {
+            get => Discipline.Name;
+        }
+        public string TeacherFio
+        {
+            get => Teacher.Fio;
+        }
+        public int GroupId
+        {
+            get => Group.Id;
+        }
+    }
+    
+    private void ButtonBack_OnClick(object? sender, RoutedEventArgs e)
+    {
+        Close();
+    }
+}

App.axaml

@@ -0,0 +1,10 @@
+<Application xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             x:Class="kursovaya.App"
+             RequestedThemeVariant="Default">
+             <!-- "Default" ThemeVariant follows system theme variant. "Dark" or "Light" are other available options. -->
+
+    <Application.Styles>
+        <FluentTheme />
+    </Application.Styles>
+</Application>

App.axaml.cs

@@ -0,0 +1,23 @@
+using Avalonia;
+using Avalonia.Controls.ApplicationLifetimes;
+using Avalonia.Markup.Xaml;
+
+namespace kursovaya;
+
+public partial class App : Application
+{
+    public override void Initialize()
+    {
+        AvaloniaXamlLoader.Load(this);
+    }
+
+    public override void OnFrameworkInitializationCompleted()
+    {
+        if (ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
+        {
+            desktop.MainWindow = new MainWindow();
+        }
+
+        base.OnFrameworkInitializationCompleted();
+    }
+}

EditAttestWindow.axaml

@@ -0,0 +1,18 @@
+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
+        x:Class="kursovaya.EditAttestWindow"
+        x:CompileBindings="False"
+        Title="EditAttestWindow">
+    <StackPanel HorizontalAlignment="Center" VerticalAlignment="Center" Spacing="10">
+        <TextBlock Text="Введите новую оценку:"/>
+        <TextBlock TextAlignment="Center" TextWrapping="Wrap">
+            <Run Text="Не больше "/>
+            <Run Text="{Binding MaxAttestNumber}"/>
+        </TextBlock>
+        <TextBox x:Name="AttestTextBox" Width="100" HorizontalAlignment="Center"/>
+        <Button Content="OK" Click="Button_OnClick" HorizontalAlignment="Center"/>
+    </StackPanel>
+</Window>

EditAttestWindow.axaml.cs

@@ -0,0 +1,50 @@
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+using Avalonia.Markup.Xaml;
+
+namespace kursovaya;
+
+public partial class EditAttestWindow : Window
+{
+    public int MaxAttestNumber { get; set; }
+    public int outputAttestNumber;
+    public EditAttestWindow()
+    {
+        InitializeComponent();
+    }
+    
+    public EditAttestWindow(int number) : this()
+    {
+        switch(number) 
+        {
+            case 1:
+                MaxAttestNumber = 20;
+                break;
+            case 2:
+                MaxAttestNumber = 30;
+                break;
+            case 3:
+                MaxAttestNumber = 50;
+                break;
+            default:
+                // code block
+                break;
+        }
+        DataContext = this;
+    }
+
+    private void Button_OnClick(object? sender, RoutedEventArgs e)
+    {
+        if (!int.TryParse(AttestTextBox.Text, out int output)) return;
+        if (output > MaxAttestNumber || output == null)
+        {
+            outputAttestNumber = 0;
+        }
+        else
+        {
+            outputAttestNumber = output;
+        }
+        Close(outputAttestNumber);
+    }
+}

MainWindow.axaml

@@ -0,0 +1,21 @@
+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
+        x:Class="kursovaya.MainWindow"
+        Title="kursovaya">
+    <DockPanel Background="Bisque">
+        <Grid>
+            <Border Width="200" HorizontalAlignment="Center">
+                <StackPanel Spacing="10" VerticalAlignment="Center">
+                    <TextBox x:Name="LoginName" Watermark="login"/>
+                    <TextBox x:Name="PasswordName" Watermark="password"/>
+                    <Button x:Name="TogglePasswordVisibility" Content="Show" Background="LightGray" Click="TogglePasswordVisibilityClick"/>
+                    <Button Click="Button_OnClick" Foreground="Black" Background="LightGray" Content="Войти"/>
+                    <TextBlock x:Name="ErrorMessage" Foreground="Red" FontSize="14" Height="40" Width="300" TextWrapping="Wrap" TextAlignment="Center"/>
+                </StackPanel>
+            </Border>
+        </Grid>
+    </DockPanel>
+</Window>

MainWindow.axaml.cs

@@ -0,0 +1,74 @@
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+using kursovaya.Models;
+
+namespace kursovaya;
+
+public partial class MainWindow : Window
+{
+    private bool _isPasswordVisible = false;
+    public MainWindow()
+    {
+        InitializeComponent();
+        PasswordName.PasswordChar = '•';
+    }
+
+    private void Button_OnClick(object? sender, RoutedEventArgs e)
+    {
+        var login = LoginName.Text;
+        var password = PasswordName.Text;
+
+        if (string.IsNullOrWhiteSpace(login) || string.IsNullOrWhiteSpace(password))
+        {
+            ErrorMessage.Text = "Поля не должны быть пустыми!";
+            return;
+        }
+
+        var ctx = new DatabaseContext();
+
+        var user = ctx.Users.FirstOrDefault(u => u.Login == login && u.Password == password);
+        
+        
+        if (user == null)
+        {
+            ErrorMessage.Text = "Вы ввели неверный логин или пароль. Пожалуйста, проверьте ещё раз данные";
+            return;
+        }
+        
+        ErrorMessage.Text = "";
+        
+        switch (user.RoleId)
+        {
+            case 1:
+                StudentWindow studentWindow = new StudentWindow(user);
+                studentWindow.ShowDialog(this);
+                break;
+            case 2:
+                TeacherWindow teacherWindow = new TeacherWindow(user);
+                teacherWindow.ShowDialog(this);
+                break;
+            case 3:
+                AdminWindow adminWindow = new AdminWindow();
+                adminWindow.ShowDialog(this);
+                break;
+        }
+    }
+    
+    private void TogglePasswordVisibilityClick(object? sender, RoutedEventArgs e)
+    {
+        _isPasswordVisible = !_isPasswordVisible;
+
+        if (_isPasswordVisible)
+        {
+            PasswordName.PasswordChar = '\0';
+            TogglePasswordVisibility.Content = "Hide";
+        }
+        else
+        {
+            PasswordName.PasswordChar = '•';
+            TogglePasswordVisibility.Content = "Show";
+        }
+    }
+}

Models/Attestation.cs

@@ -0,0 +1,25 @@
+using System;
+using System.Collections.Generic;
+
+namespace kursovaya.Models;
+
+public partial class Attestation
+{
+    public int IdUser { get; set; }
+
+    public int IdDiscipline { get; set; }
+
+    public int AttestFirst { get; set; }
+
+    public int AttestSecond { get; set; }
+
+    public int AttestThird { get; set; }
+
+    public int Total { get; set; }
+
+    public string Grade { get; set; } = null!;
+
+    public virtual Discipline IdDisciplineNavigation { get; set; } = null!;
+
+    public virtual Student IdUserNavigation { get; set; } = null!;
+}

Models/DatabaseContext.cs

@@ -0,0 +1,213 @@
+using System;
+using System.Collections.Generic;
+using Microsoft.EntityFrameworkCore;
+
+namespace kursovaya.Models;
+
+public partial class DatabaseContext : DbContext
+{
+    public DatabaseContext()
+    {
+    }
+
+    public DatabaseContext(DbContextOptions<DatabaseContext> options)
+        : base(options)
+    {
+    }
+
+    public virtual DbSet<Attestation> Attestations { get; set; }
+
+    public virtual DbSet<Discipline> Disciplines { get; set; }
+
+    public virtual DbSet<DisciplineTeacher> DisciplineTeachers { get; set; }
+
+    public virtual DbSet<FormAttest> FormAttests { get; set; }
+
+    public virtual DbSet<Group> Groups { get; set; }
+
+    public virtual DbSet<Role> Roles { get; set; }
+
+    public virtual DbSet<Student> Students { get; set; }
+
+    public virtual DbSet<Teacher> Teachers { get; set; }
+
+    public virtual DbSet<User> Users { 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=localhost;Database=postgres;Username=postgres;Password=5432");
+
+    protected override void OnModelCreating(ModelBuilder modelBuilder)
+    {
+        modelBuilder.Entity<Attestation>(entity =>
+        {
+            entity.HasKey(e => new { e.IdUser, e.IdDiscipline }).HasName("attestation_pkey");
+
+            entity.ToTable("attestation");
+
+            entity.Property(e => e.IdUser).HasColumnName("id_user");
+            entity.Property(e => e.IdDiscipline).HasColumnName("id_discipline");
+            entity.Property(e => e.AttestFirst).HasColumnName("attest_first");
+            entity.Property(e => e.AttestSecond).HasColumnName("attest_second");
+            entity.Property(e => e.AttestThird).HasColumnName("attest_third");
+            entity.Property(e => e.Grade)
+                .HasMaxLength(255)
+                .HasColumnName("grade");
+            entity.Property(e => e.Total).HasColumnName("total");
+
+            entity.HasOne(d => d.IdDisciplineNavigation).WithMany(p => p.Attestations)
+                .HasForeignKey(d => d.IdDiscipline)
+                .HasConstraintName("attestation_id_discipline_fkey");
+
+            entity.HasOne(d => d.IdUserNavigation).WithMany(p => p.Attestations)
+                .HasForeignKey(d => d.IdUser)
+                .HasConstraintName("attestation_id_user_fkey");
+        });
+
+        modelBuilder.Entity<Discipline>(entity =>
+        {
+            entity.HasKey(e => e.Id).HasName("discipline_pkey");
+
+            entity.ToTable("discipline");
+
+            entity.Property(e => e.Id).HasColumnName("id");
+            entity.Property(e => e.IdFormAttest).HasColumnName("id_form_attest");
+            entity.Property(e => e.Name)
+                .HasMaxLength(255)
+                .HasColumnName("name");
+
+            entity.HasOne(d => d.IdFormAttestNavigation).WithMany(p => p.Disciplines)
+                .HasForeignKey(d => d.IdFormAttest)
+                .HasConstraintName("discipline_id_form_attest_fkey");
+        });
+
+        modelBuilder.Entity<DisciplineTeacher>(entity =>
+        {
+            entity.HasKey(e => e.Id).HasName("discipline_teachers_pkey");
+
+            entity.ToTable("discipline_teachers");
+
+            entity.HasIndex(e => new { e.IdDiscipline, e.IdTeacher }, "unique_discipline_teacher").IsUnique();
+
+            entity.Property(e => e.Id).HasColumnName("id");
+            entity.Property(e => e.IdDiscipline).HasColumnName("id_discipline");
+            entity.Property(e => e.IdTeacher).HasColumnName("id_teacher");
+
+            entity.HasOne(d => d.IdDisciplineNavigation).WithMany(p => p.DisciplineTeachers)
+                .HasForeignKey(d => d.IdDiscipline)
+                .HasConstraintName("discipline_teachers_id_discipline_fkey");
+
+            entity.HasOne(d => d.IdTeacherNavigation).WithMany(p => p.DisciplineTeachers)
+                .HasForeignKey(d => d.IdTeacher)
+                .HasConstraintName("discipline_teachers_id_teacher_fkey");
+        });
+
+        modelBuilder.Entity<FormAttest>(entity =>
+        {
+            entity.HasKey(e => e.Id).HasName("form_attest_pkey");
+
+            entity.ToTable("form_attest");
+
+            entity.Property(e => e.Id).HasColumnName("id");
+            entity.Property(e => e.Name)
+                .HasMaxLength(255)
+                .HasColumnName("name");
+        });
+
+        modelBuilder.Entity<Group>(entity =>
+        {
+            entity.HasKey(e => e.Id).HasName("groups_pkey");
+
+            entity.ToTable("groups");
+
+            entity.Property(e => e.Id).HasColumnName("id");
+            entity.Property(e => e.YearAdmission).HasColumnName("year_admission");
+        });
+
+        modelBuilder.Entity<Role>(entity =>
+        {
+            entity.HasKey(e => e.Id).HasName("roles_pkey");
+
+            entity.ToTable("roles");
+
+            entity.Property(e => e.Id).HasColumnName("id");
+            entity.Property(e => e.RoleName)
+                .HasMaxLength(255)
+                .HasColumnName("role_name");
+        });
+
+        modelBuilder.Entity<Student>(entity =>
+        {
+            entity.HasKey(e => e.Id).HasName("students_pkey");
+
+            entity.ToTable("students");
+
+            entity.Property(e => e.Id).HasColumnName("id");
+            entity.Property(e => e.Fio)
+                .HasMaxLength(255)
+                .HasColumnName("fio");
+            entity.Property(e => e.IdGroup).HasColumnName("id_group");
+            entity.Property(e => e.Login)
+                .HasMaxLength(255)
+                .HasColumnName("login");
+
+            entity.HasOne(d => d.IdGroupNavigation).WithMany(p => p.Students)
+                .HasForeignKey(d => d.IdGroup)
+                .HasConstraintName("students_id_group_fkey");
+
+            entity.HasOne(d => d.LoginNavigation).WithMany(p => p.Students)
+                .HasPrincipalKey(p => p.Login)
+                .HasForeignKey(d => d.Login)
+                .HasConstraintName("students_login_fkey");
+        });
+
+        modelBuilder.Entity<Teacher>(entity =>
+        {
+            entity.HasKey(e => e.Id).HasName("teachers_pkey");
+
+            entity.ToTable("teachers");
+
+            entity.Property(e => e.Id).HasColumnName("id");
+            entity.Property(e => e.Fio)
+                .HasMaxLength(255)
+                .HasColumnName("fio");
+            entity.Property(e => e.Login)
+                .HasMaxLength(255)
+                .HasColumnName("login");
+
+            entity.HasOne(d => d.LoginNavigation).WithMany(p => p.Teachers)
+                .HasPrincipalKey(p => p.Login)
+                .HasForeignKey(d => d.Login)
+                .HasConstraintName("teachers_login_fkey");
+        });
+
+        modelBuilder.Entity<User>(entity =>
+        {
+            entity.HasKey(e => e.Id).HasName("users_pkey");
+
+            entity.ToTable("users");
+
+            entity.HasIndex(e => e.Login, "login").IsUnique();
+
+            entity.Property(e => e.Id).HasColumnName("id");
+            entity.Property(e => e.Email)
+                .HasMaxLength(255)
+                .HasColumnName("email");
+            entity.Property(e => e.Login)
+                .HasMaxLength(255)
+                .HasColumnName("login");
+            entity.Property(e => e.Password)
+                .HasMaxLength(255)
+                .HasColumnName("password");
+            entity.Property(e => e.RoleId).HasColumnName("role_id");
+
+            entity.HasOne(d => d.Role).WithMany(p => p.Users)
+                .HasForeignKey(d => d.RoleId)
+                .HasConstraintName("users_role_id_fkey");
+        });
+
+        OnModelCreatingPartial(modelBuilder);
+    }
+
+    partial void OnModelCreatingPartial(ModelBuilder modelBuilder);
+}

Models/Discipline.cs

@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+
+namespace kursovaya.Models;
+
+public partial class Discipline
+{
+    public int Id { get; set; }
+
+    public string Name { get; set; } = null!;
+
+    public int IdFormAttest { get; set; }
+
+    public virtual ICollection<Attestation> Attestations { get; set; } = new List<Attestation>();
+
+    public virtual ICollection<DisciplineTeacher> DisciplineTeachers { get; set; } = new List<DisciplineTeacher>();
+
+    public virtual FormAttest IdFormAttestNavigation { get; set; } = null!;
+}

Models/DisciplineTeacher.cs

@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+
+namespace kursovaya.Models;
+
+public partial class DisciplineTeacher
+{
+    public int Id { get; set; }
+
+    public int IdDiscipline { get; set; }
+
+    public int IdTeacher { get; set; }
+
+    public virtual Discipline IdDisciplineNavigation { get; set; } = null!;
+
+    public virtual Teacher IdTeacherNavigation { get; set; } = null!;
+}

Models/FormAttest.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+
+namespace kursovaya.Models;
+
+public partial class FormAttest
+{
+    public int Id { get; set; }
+
+    public string Name { get; set; } = null!;
+
+    public virtual ICollection<Discipline> Disciplines { get; set; } = new List<Discipline>();
+}

Models/Group.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+
+namespace kursovaya.Models;
+
+public partial class Group
+{
+    public int Id { get; set; }
+
+    public int YearAdmission { get; set; }
+
+    public virtual ICollection<Student> Students { get; set; } = new List<Student>();
+}

Models/Role.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+
+namespace kursovaya.Models;
+
+public partial class Role
+{
+    public int Id { get; set; }
+
+    public string RoleName { get; set; } = null!;
+
+    public virtual ICollection<User> Users { get; set; } = new List<User>();
+}

Models/Student.cs

@@ -0,0 +1,21 @@
+using System;
+using System.Collections.Generic;
+
+namespace kursovaya.Models;
+
+public partial class Student
+{
+    public int Id { get; set; }
+
+    public string Fio { get; set; } = null!;
+
+    public int IdGroup { get; set; }
+
+    public string Login { get; set; } = null!;
+
+    public virtual ICollection<Attestation> Attestations { get; set; } = new List<Attestation>();
+
+    public virtual Group IdGroupNavigation { get; set; } = null!;
+
+    public virtual User LoginNavigation { get; set; } = null!;
+}

Models/Teacher.cs

@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+
+namespace kursovaya.Models;
+
+public partial class Teacher
+{
+    public int Id { get; set; }
+
+    public string Fio { get; set; } = null!;
+
+    public string Login { get; set; } = null!;
+
+    public virtual ICollection<DisciplineTeacher> DisciplineTeachers { get; set; } = new List<DisciplineTeacher>();
+
+    public virtual User LoginNavigation { get; set; } = null!;
+}

Models/User.cs

@@ -0,0 +1,23 @@
+using System;
+using System.Collections.Generic;
+
+namespace kursovaya.Models;
+
+public partial class User
+{
+    public int Id { get; set; }
+
+    public string Login { get; set; } = null!;
+
+    public string Password { get; set; } = null!;
+
+    public string Email { get; set; } = null!;
+
+    public int RoleId { get; set; }
+
+    public virtual Role Role { get; set; } = null!;
+
+    public virtual ICollection<Student> Students { get; set; } = new List<Student>();
+
+    public virtual ICollection<Teacher> Teachers { get; set; } = new List<Teacher>();
+}

Program.cs

@@ -0,0 +1,21 @@
+using Avalonia;
+using System;
+
+namespace kursovaya;
+
+class Program
+{
+    // Initialization code. Don't use any Avalonia, third-party APIs or any
+    // SynchronizationContext-reliant code before AppMain is called: things aren't initialized
+    // yet and stuff might break.
+    [STAThread]
+    public static void Main(string[] args) => BuildAvaloniaApp()
+        .StartWithClassicDesktopLifetime(args);
+
+    // Avalonia configuration, don't remove; also used by visual designer.
+    public static AppBuilder BuildAvaloniaApp()
+        => AppBuilder.Configure<App>()
+            .UsePlatformDetect()
+            .WithInterFont()
+            .LogToTrace();
+}

StudentWindow.axaml

@@ -0,0 +1,65 @@
+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
+        x:Class="kursovaya.StudentWindow"
+        x:CompileBindings="False"
+        Title="StudentWindow">
+        <Border Background="Bisque">
+                <DockPanel>
+                        <StackPanel DockPanel.Dock="Top" Orientation="Horizontal" Background="LightBlue" Height="30">
+                                <Button DockPanel.Dock="Left" Content="Назад" Click="ButtonBack_OnClick" Width="100" HorizontalAlignment="Left" Foreground="Black" Background="LightGray"/>
+                                <ComboBox x:Name="DisciplineComboBox" HorizontalAlignment="Center" SelectionChanged="DisciplineCombobox_OnSelectionChanged"/>
+                                <Button Content="Просмотр аттестации" Click="CheckAttest_OnClick" Foreground="Black"/>
+                                <TextBlock x:Name="InfoTextBlock" HorizontalAlignment="Right" VerticalAlignment="Center" FontSize="15" DockPanel.Dock="Right" Foreground="Black"/>
+                        </StackPanel>
+                        <Grid DockPanel.Dock="Top" ColumnDefinitions="3*,3*,1*,1*,1*,1*,1*" Background="LightGray" Height="35">
+                            <TextBlock Grid.Column="0" Text="Дисциплина" VerticalAlignment="Center" Margin="5" FontWeight="Bold" Foreground="Black"/>
+                            <TextBlock Grid.Column="1" Text="Преподаватель" VerticalAlignment="Center" Margin="5" FontWeight="Bold" Foreground="Black"/>
+                            <TextBlock Grid.Column="2" Text="1 Аттестация" VerticalAlignment="Center" HorizontalAlignment="Center" FontWeight="Bold" Foreground="Black"/>
+                            <TextBlock Grid.Column="3" Text="2 Аттестация" VerticalAlignment="Center" HorizontalAlignment="Center" FontWeight="Bold" Foreground="Black"/>
+                            <TextBlock Grid.Column="4" Text="3 Аттестация" VerticalAlignment="Center" HorizontalAlignment="Center" FontWeight="Bold" Foreground="Black"/>
+                            <TextBlock Grid.Column="5" Text="Итог" VerticalAlignment="Center" HorizontalAlignment="Center" FontWeight="Bold" Foreground="Black"/>
+                            <TextBlock Grid.Column="6" Text="Оценка" VerticalAlignment="Center" HorizontalAlignment="Center" FontWeight="Bold" Foreground="Black"/>
+                        </Grid>
+                        <ScrollViewer>
+                            <ItemsControl x:Name="FlatAttestationGrid" ItemsSource="{Binding Attestations}">
+                                <ItemsControl.ItemTemplate>
+                                    <DataTemplate>
+                                        <Grid ColumnDefinitions="3*,3*,1*,1*,1*,1*,1*" Margin="2" Background="LightGray" Height="40">
+                                            <Border Grid.Column="0" BorderBrush="Black" BorderThickness="0.5">
+                                                <TextBlock Text="{Binding DisciplineName}" VerticalAlignment="Center" Margin="10,0" Foreground="Black"/>
+                                            </Border>
+                                            
+                                            <Border Grid.Column="1" BorderBrush="Black" BorderThickness="0.5">
+                                                <TextBlock Text="{Binding TeacherName}" VerticalAlignment="Center" Margin="10,0" Foreground="Black"/>
+                                            </Border>
+                                            
+                                            <Border Grid.Column="2" BorderBrush="Black" BorderThickness="0.5">
+                                                <TextBlock Text="{Binding AttestFirst}" VerticalAlignment="Center" HorizontalAlignment="Center" Foreground="Black"/>
+                                            </Border>
+                                            
+                                            <Border Grid.Column="3" BorderBrush="Black" BorderThickness="0.5">
+                                                <TextBlock Text="{Binding AttestSecond}" VerticalAlignment="Center" HorizontalAlignment="Center" Foreground="Black"/>
+                                            </Border>
+                                            
+                                            <Border Grid.Column="4" BorderBrush="Black" BorderThickness="0.5">
+                                                <TextBlock Text="{Binding AttestThird}" VerticalAlignment="Center" HorizontalAlignment="Center" Foreground="Black"/>
+                                            </Border>
+
+                                            <Border Grid.Column="5" BorderBrush="Black" BorderThickness="0.5">
+                                                <TextBlock Text="{Binding Total}" VerticalAlignment="Center" HorizontalAlignment="Center" Foreground="Black"/>
+                                            </Border>
+
+                                            <Border Grid.Column="6" BorderBrush="Black" BorderThickness="0.5">
+                                                <TextBlock Text="{Binding Grade}" VerticalAlignment="Center" HorizontalAlignment="Center" Foreground="Black"/>
+                                            </Border>
+                                        </Grid>
+                                    </DataTemplate>
+                                </ItemsControl.ItemTemplate>
+                            </ItemsControl>
+                        </ScrollViewer>
+                </DockPanel>     
+        </Border>
+</Window>

StudentWindow.axaml.cs

@@ -0,0 +1,105 @@
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+using Avalonia.Markup.Xaml;
+using kursovaya.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace kursovaya;
+
+public partial class StudentWindow : Window
+{
+    public ObservableCollection<AttestationPresenter> Attestations = new ObservableCollection<AttestationPresenter>();
+    List<AttestationPresenter> dataSourceAttestations;
+    private Student student;
+    public StudentWindow()
+    {
+        InitializeComponent();
+    }
+    
+    public StudentWindow(User user): this()
+    {
+        var ctx = new DatabaseContext();
+        student = ctx.Students.FirstOrDefault(s => s.Login == user.Login);
+        
+        string infoPrint = $"ФИО: {student.Fio} Группа: {student.IdGroup}";
+        InfoTextBlock.Text = infoPrint;
+        
+        var disciplineIds = ctx.Attestations.Where(d => d.IdUser == student.Id).Select(d => d.IdDiscipline).ToList();
+        var disciplines = ctx.Disciplines.Where(d => disciplineIds.Contains(d.Id)).Select(d => d.Name).ToList();
+        
+        dataSourceAttestations = ctx.Attestations.Where(at => at.IdUser == student.Id).Select(at => new AttestationPresenter()
+        {
+            IdUser = at.IdUser,
+            IdDiscipline = at.IdDiscipline,
+            AttestFirst = at.AttestFirst,
+            AttestSecond = at.AttestSecond,
+            AttestThird = at.AttestThird,
+            Total = at.Total,
+            Grade = at.Grade,
+        }).ToList();
+        
+        DisciplineComboBox.ItemsSource = disciplines;
+        FlatAttestationGrid.ItemsSource = Attestations;
+        // ListBoxAttestation.ItemsSource = Attestations;
+    }
+    
+    public class AttestationPresenter() : Attestation
+    {
+        public string DisciplineName
+        {
+            get
+            {
+                var ctx = new DatabaseContext();
+                return ctx.Disciplines.Where(d => d.Id == IdDiscipline).FirstOrDefault().Name;
+            }
+        }
+
+        public string TeacherName
+        {
+            get
+            {
+                var ctx = new DatabaseContext();
+                return ctx.Teachers.Include(t => t.DisciplineTeachers).FirstOrDefault(t => t.DisciplineTeachers.Any(dt => dt.IdDiscipline == IdDiscipline))?.Fio ?? "empty";
+            }
+        }
+    }
+    
+    public void DisplayServices()
+    {
+        var ctx = new DatabaseContext();
+        var temp = dataSourceAttestations;
+        Attestations.Clear();
+
+        if (DisciplineComboBox.SelectionBoxItem != null)
+        {
+            var idDiscipline = ctx.Disciplines.Where(d => d.Name == DisciplineComboBox.SelectionBoxItem)
+                .Select(d => d.Id).FirstOrDefault();
+            temp = temp.Where(u => u.IdDiscipline == idDiscipline && u.IdUser == student.Id).ToList();
+        }
+        
+        foreach (var item in temp)
+        {
+            Attestations.Add(item);
+        }
+    }
+    
+    private void DisciplineCombobox_OnSelectionChanged(object? sender, SelectionChangedEventArgs e)
+    {
+        // DisplayServices();
+    }
+
+    private void ButtonBack_OnClick(object? sender, RoutedEventArgs e)
+    {
+        Close();
+    }
+
+    private void CheckAttest_OnClick(object? sender, RoutedEventArgs e)
+    {
+        DisplayServices();
+    }
+}

TeacherWindow.axaml

@@ -0,0 +1,90 @@
+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
+        x:Class="kursovaya.TeacherWindow"
+        x:CompileBindings="False"
+        Title="TeacherWindow">
+        <Border Background="Bisque">
+                <DockPanel>
+                        <StackPanel DockPanel.Dock="Top" Orientation="Horizontal" Background="LightBlue" Height="30">
+                                <Button DockPanel.Dock="Left" Content="Назад" Click="ButtonBack_OnClick" Width="100" HorizontalAlignment="Left" Foreground="Black" Background="LightGray"/>
+                                <ComboBox x:Name="GroupComboBox" HorizontalAlignment="Center"/>
+                                <ComboBox x:Name="DisciplineComboBox" HorizontalAlignment="Center"/>
+                                <Button Content="Просмотр аттестации" Click="CheckAttest_OnClick" Foreground="Black"/>
+
+                        </StackPanel>
+                        <Grid DockPanel.Dock="Top" ColumnDefinitions="3*,1*,1*,1*,1*,1*" Background="LightGray" Height="35">
+                            <TextBlock Grid.Column="0" Text="ФИО Студента" VerticalAlignment="Center" Margin="5" FontWeight="Bold" Foreground="Black"/>
+                            <TextBlock Grid.Column="1" Text="1 Аттестация" VerticalAlignment="Center" HorizontalAlignment="Center" FontWeight="Bold" Foreground="Black"/>
+                            <TextBlock Grid.Column="2" Text="2 Аттестация" VerticalAlignment="Center" HorizontalAlignment="Center" FontWeight="Bold" Foreground="Black"/>
+                            <TextBlock Grid.Column="3" Text="3 Аттестация" VerticalAlignment="Center" HorizontalAlignment="Center" FontWeight="Bold" Foreground="Black"/>
+                            <TextBlock Grid.Column="4" Text="Итог" VerticalAlignment="Center" HorizontalAlignment="Center" FontWeight="Bold" Foreground="Black"/>
+                            <TextBlock Grid.Column="5" Text="Оценка" VerticalAlignment="Center" HorizontalAlignment="Center" FontWeight="Bold" Foreground="Black"/>
+                        </Grid>
+                        <ScrollViewer>
+                            <ItemsControl x:Name="FlatAttestationGrid" ItemsSource="{Binding AttestationsTeachers}">
+                                <ItemsControl.ItemTemplate>
+                                    <DataTemplate>
+                                        <Grid ColumnDefinitions="3*,1*,1*,1*,1*,1*" Margin="2" Background="LightGray" Height="40">
+                                            <Border BorderBrush="Black" BorderThickness="0.5">
+                                                <TextBlock Text="{Binding StudentFIO}" VerticalAlignment="Center" Margin="10,0" Foreground="Black"/>
+                                            </Border>
+                                            <Border Grid.Column="1" BorderBrush="Black" BorderThickness="0.5">
+                                                <Button Content="{Binding AttestFirst}" Tag="{Binding}" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Foreground="Black" Background="Transparent" BorderThickness="0" Padding="0" Click="FirstAttest_OnClick">
+                                                    <Button.Styles>
+                                                        <Style Selector="Button">
+                                                            <Setter Property="Background" Value="Transparent"/>
+                                                            <Setter Property="BorderBrush" Value="Transparent"/>
+                                                            <Setter Property="Foreground" Value="Black"/>
+                                                            <Setter Property="HorizontalContentAlignment" Value="Center"/>
+                                                            <Setter Property="VerticalContentAlignment" Value="Center"/>
+                                                        </Style>
+                                                    </Button.Styles>
+                                                </Button>
+                                            </Border>
+                                            
+                                            <Border Grid.Column="2" BorderBrush="Black" BorderThickness="0.5">
+                                                <Button Content="{Binding AttestSecond}" Tag="{Binding}" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Foreground="Black" Background="Transparent" BorderThickness="0" Padding="0" Click="SecondAttest_OnClick">
+                                                    <Button.Styles>
+                                                        <Style Selector="Button">
+                                                            <Setter Property="Background" Value="Transparent"/>
+                                                            <Setter Property="BorderBrush" Value="Transparent"/>
+                                                            <Setter Property="Foreground" Value="Black"/>
+                                                            <Setter Property="HorizontalContentAlignment" Value="Center"/>
+                                                            <Setter Property="VerticalContentAlignment" Value="Center"/>
+                                                        </Style>
+                                                    </Button.Styles>
+                                                </Button>
+                                            </Border>
+                                            
+                                            <Border Grid.Column="3" BorderBrush="Black" BorderThickness="0.5">
+                                                <Button Content="{Binding AttestThird}" Tag="{Binding}" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Foreground="Black" Background="Transparent" BorderThickness="0" Padding="0" Click="ThirdAttest_OnClick">
+                                                    <Button.Styles>
+                                                        <Style Selector="Button">
+                                                            <Setter Property="Background" Value="Transparent"/>
+                                                            <Setter Property="BorderBrush" Value="Transparent"/>
+                                                            <Setter Property="Foreground" Value="Black"/>
+                                                            <Setter Property="HorizontalContentAlignment" Value="Center"/>
+                                                            <Setter Property="VerticalContentAlignment" Value="Center"/>
+                                                        </Style>
+                                                    </Button.Styles>
+                                                </Button>
+                                            </Border>
+
+                                            <Border Grid.Column="4" BorderBrush="Black" BorderThickness="0.5">
+                                                <TextBlock Text="{Binding Total}" VerticalAlignment="Center" HorizontalAlignment="Center" Foreground="Black"/>
+                                            </Border>
+
+                                            <Border Grid.Column="5" BorderBrush="Black" BorderThickness="0.5">
+                                                <TextBlock Text="{Binding Grade}" VerticalAlignment="Center" HorizontalAlignment="Center" Foreground="Black"/>
+                                            </Border>
+                                        </Grid>
+                                    </DataTemplate>
+                                </ItemsControl.ItemTemplate>
+                            </ItemsControl>
+                        </ScrollViewer>
+                </DockPanel>
+        </Border>
+</Window>

TeacherWindow.axaml.cs

@@ -0,0 +1,253 @@
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+using Avalonia.Markup.Xaml;
+using kursovaya.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace kursovaya;
+
+public partial class TeacherWindow : Window
+{
+    List<DiscGroup> discGroups = new();    
+    public ObservableCollection<AttestationPresenterTeacher> AttestationsTeachers = new ObservableCollection<AttestationPresenterTeacher>();
+    List<AttestationPresenterTeacher> dataSourceAttestationsTeachers;
+    public TeacherWindow()
+    {
+        InitializeComponent();
+    }
+
+    public TeacherWindow(User user) : this()
+    {
+        var ctx = new DatabaseContext();
+        
+        var groups = ctx.Groups.ToList();
+        var teacherId = ctx.Teachers.FirstOrDefault(t => t.Login == user.Login).Id;
+        var disciplinesIds = ctx.Disciplines.Include(d => d.DisciplineTeachers).Where(d => d.DisciplineTeachers.Any(dt => dt.IdTeacher == teacherId)).Select(d => d.Id).ToList();
+        var disciplines = ctx.Disciplines.Include(d => d.DisciplineTeachers).Where(d => d.DisciplineTeachers.Any(dt => dt.IdTeacher == teacherId)).ToList();
+        dataSourceAttestationsTeachers = ctx.Attestations.Where(a => disciplinesIds.Contains(a.IdDiscipline)).Select(a => new AttestationPresenterTeacher()
+        {
+            IdUser = a.IdUser,
+            IdDiscipline = a.IdDiscipline,
+            AttestFirst = a.AttestFirst,
+            AttestSecond = a.AttestSecond,
+            AttestThird = a.AttestThird,
+            Total = a.Total,
+            Grade = a.Grade,
+            StudentFIO = ctx.Students.Where(s => s.Id == a.IdUser).Select(s => s.Fio).FirstOrDefault(),
+        }).ToList();
+        foreach (var group in groups)
+        {
+            foreach (var discipline in disciplines)
+            {
+                var attestationsToDiscGroup = dataSourceAttestationsTeachers.Where(a => ctx.Students.Any(s => s.Id == a.IdUser && s.IdGroup == group.Id) && a.IdDiscipline == discipline.Id).ToList();
+                discGroups.Add(new DiscGroup(){discipline = discipline, group = group, attestations = attestationsToDiscGroup});
+            }
+        }
+        discGroups.RemoveAll(d => d.attestations.Count == 0);
+        
+        foreach (var discGroup in discGroups)
+        {
+            Console.WriteLine($"{discGroup.discipline.Name} - {discGroup.group.Id} - {discGroup.attestations.Count}");
+        }
+        
+        GroupComboBox.ItemsSource = discGroups.Select(dg => dg.group.Id).Distinct().ToList();
+        DisciplineComboBox.ItemsSource = discGroups.Select(dg => dg.discipline.Name).Distinct().ToList();
+        FlatAttestationGrid.ItemsSource = AttestationsTeachers;
+    }
+    
+    public class AttestationPresenterTeacher() : Attestation
+    {
+        public string StudentFIO { get; set; }
+    }
+    
+    public class DiscGroup
+    {
+        public Discipline discipline;
+        public Group group;
+        public List<AttestationPresenterTeacher> attestations = new();
+    }
+    
+    public void DisplayAttestations()
+    {
+        var ctx = new DatabaseContext();
+        var temp = dataSourceAttestationsTeachers;
+        AttestationsTeachers.Clear();
+    
+        if (GroupComboBox.SelectionBoxItem != null)
+        {
+            var selectedGroupId = Convert.ToInt32(GroupComboBox.SelectedItem);
+            temp = temp.Where(ap => ctx.Students.Any(s => s.Id == ap.IdUser && s.IdGroup == selectedGroupId)).ToList();
+        }
+        
+        if (DisciplineComboBox.SelectionBoxItem != null)
+        {
+            var idDiscipline = ctx.Disciplines.Where(d => d.Name == DisciplineComboBox.SelectionBoxItem)
+                .Select(d => d.Id).FirstOrDefault();
+            temp = temp.Where(ap => ap.IdDiscipline == idDiscipline).ToList();
+        }
+        
+        Console.WriteLine("Добавлено элементов: " + temp.Count);
+        
+        foreach (var item in temp)
+        {
+            AttestationsTeachers.Add(item);
+        }
+    }
+
+    private void ButtonBack_OnClick(object? sender, RoutedEventArgs e)
+    {
+        Close();
+    }
+    
+    private void CheckAttest_OnClick(object? sender, RoutedEventArgs e)
+    {
+        DisplayAttestations();
+    }
+
+    private string CalculateGrade(int total, int formAttest)
+    {
+        string grade = "";
+        switch (formAttest)
+        {
+            case 1:
+                if (total >= 90) grade = "отлично";
+                else if (total >= 80) grade = "хорошо";
+                else if (total >= 70) grade = "удовлетворительно";
+                else grade = "неудовлетворительно";
+                break;
+            case 2:
+                if (total >= 90) grade = "отлично";
+                else if (total >= 80) grade = "хорошо";
+                else if (total >= 70) grade = "удовлетворительно";
+                else grade = "неудовлетворительно";
+                break;
+            case 3:
+                if (total >= 70) grade = "зачтено";
+                else grade = "не зачтено";
+                break;
+        }
+        return grade;
+    }
+    
+    private async void FirstAttest_OnClick(object? sender, RoutedEventArgs e)
+    {
+        if (sender is Button button && button.Tag is AttestationPresenterTeacher attestation)
+        {
+            EditAttestWindow editAttestWindow = new EditAttestWindow(1);
+            var newFirstAttest = await editAttestWindow.ShowDialog<int>(this);
+            var ctx = new DatabaseContext();
+            var formAttest = ctx.Disciplines.FirstOrDefault(d => d.Id == attestation.IdDiscipline).IdFormAttest;
+            
+            Attestation newAttestation = new Attestation()
+            {
+                IdUser = attestation.IdUser,
+                IdDiscipline = attestation.IdDiscipline,
+                AttestFirst = newFirstAttest,
+                AttestSecond = attestation.AttestSecond,
+                AttestThird = attestation.AttestThird,
+                Total = newFirstAttest + attestation.AttestSecond + attestation.AttestThird,
+                Grade = CalculateGrade(newFirstAttest + attestation.AttestSecond + attestation.AttestThird, formAttest),
+            };
+            
+            ctx.Attestations.Update(newAttestation);
+            await ctx.SaveChangesAsync();
+            
+            dataSourceAttestationsTeachers.Remove(attestation);
+            dataSourceAttestationsTeachers.Add(new AttestationPresenterTeacher()
+            {
+                IdUser = newAttestation.IdUser,
+                IdDiscipline = newAttestation.IdDiscipline,
+                AttestFirst = newAttestation.AttestFirst,
+                AttestSecond = newAttestation.AttestSecond,
+                AttestThird = newAttestation.AttestThird,
+                Total = newAttestation.Total,
+                Grade = newAttestation.Grade,
+                StudentFIO = ctx.Students.Where(s => s.Id == newAttestation.IdUser).Select(s => s.Fio).FirstOrDefault()
+            });
+            DisplayAttestations();
+        }
+    }
+    
+    private async void SecondAttest_OnClick(object? sender, RoutedEventArgs e)
+    {
+        if (sender is Button button && button.Tag is AttestationPresenterTeacher attestation)
+        {
+            EditAttestWindow editAttestWindow = new EditAttestWindow(2);
+            var newSecondAttest = await editAttestWindow.ShowDialog<int>(this);
+            var ctx = new DatabaseContext();
+            var formAttest = ctx.Disciplines.FirstOrDefault(d => d.Id == attestation.IdDiscipline).IdFormAttest;
+            
+            Attestation newAttestation = new Attestation()
+            {
+                IdUser = attestation.IdUser,
+                IdDiscipline = attestation.IdDiscipline,
+                AttestFirst = attestation.AttestFirst,
+                AttestSecond = newSecondAttest,
+                AttestThird = attestation.AttestThird,
+                Total = attestation.AttestFirst + newSecondAttest + attestation.AttestThird,
+                Grade = CalculateGrade(attestation.AttestFirst + newSecondAttest + attestation.AttestThird, formAttest),
+            };
+            
+            ctx.Attestations.Update(newAttestation);
+            await ctx.SaveChangesAsync();
+            
+            dataSourceAttestationsTeachers.Remove(attestation);
+            dataSourceAttestationsTeachers.Add(new AttestationPresenterTeacher()
+            {
+                IdUser = newAttestation.IdUser,
+                IdDiscipline = newAttestation.IdDiscipline,
+                AttestFirst = newAttestation.AttestFirst,
+                AttestSecond = newAttestation.AttestSecond,
+                AttestThird = newAttestation.AttestThird,
+                Total = newAttestation.Total,
+                Grade = newAttestation.Grade,
+                StudentFIO = ctx.Students.Where(s => s.Id == newAttestation.IdUser).Select(s => s.Fio).FirstOrDefault()
+            });
+            DisplayAttestations();
+        }
+    }
+    
+    private async void ThirdAttest_OnClick(object? sender, RoutedEventArgs e)
+    {
+        if (sender is Button button && button.Tag is AttestationPresenterTeacher attestation)
+        {
+            EditAttestWindow editAttestWindow = new EditAttestWindow(3);
+            var newThirdAttest = await editAttestWindow.ShowDialog<int>(this);
+            var ctx = new DatabaseContext();
+            var formAttest = ctx.Disciplines.FirstOrDefault(d => d.Id == attestation.IdDiscipline).IdFormAttest;
+            
+            Attestation newAttestation = new Attestation()
+            {
+                IdUser = attestation.IdUser,
+                IdDiscipline = attestation.IdDiscipline,
+                AttestFirst = attestation.AttestFirst,
+                AttestSecond = attestation.AttestSecond,
+                AttestThird = newThirdAttest,
+                Total = attestation.AttestFirst + attestation.AttestSecond + newThirdAttest,
+                Grade = CalculateGrade(attestation.AttestFirst + attestation.AttestSecond + newThirdAttest, formAttest),
+            };
+            
+            ctx.Attestations.Update(newAttestation);
+            await ctx.SaveChangesAsync();
+            
+            dataSourceAttestationsTeachers.Remove(attestation);
+            dataSourceAttestationsTeachers.Add(new AttestationPresenterTeacher()
+            {
+                IdUser = newAttestation.IdUser,
+                IdDiscipline = newAttestation.IdDiscipline,
+                AttestFirst = newAttestation.AttestFirst,
+                AttestSecond = newAttestation.AttestSecond,
+                AttestThird = newAttestation.AttestThird,
+                Total = newAttestation.Total,
+                Grade = newAttestation.Grade,
+                StudentFIO = ctx.Students.Where(s => s.Id == newAttestation.IdUser).Select(s => s.Fio).FirstOrDefault()
+            });
+            DisplayAttestations();
+        }
+    }
+}

app.manifest

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<assembly manifestVersion="1.0" xmlns="urn:schemas-microsoft-com:asm.v1">
+  <!-- This manifest is used on Windows only.
+       Don't remove it as it might cause problems with window transparency and embedded controls.
+       For more details visit https://learn.microsoft.com/en-us/windows/win32/sbscs/application-manifests -->
+  <assemblyIdentity version="1.0.0.0" name="kursovaya.Desktop"/>
+
+  <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
+    <application>
+      <!-- A list of the Windows versions that this application has been tested on
+           and is designed to work with. Uncomment the appropriate elements
+           and Windows will automatically select the most compatible environment. -->
+
+      <!-- Windows 10 -->
+      <supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}" />
+    </application>
+  </compatibility>
+</assembly>