init v2

AppForKids.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AppForKids", "AppForKids\AppForKids.csproj", "{4E7B7257-224A-465E-84C9-AF7DC5D9FF3E}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{4E7B7257-224A-465E-84C9-AF7DC5D9FF3E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{4E7B7257-224A-465E-84C9-AF7DC5D9FF3E}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{4E7B7257-224A-465E-84C9-AF7DC5D9FF3E}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{4E7B7257-224A-465E-84C9-AF7DC5D9FF3E}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+EndGlobal

AppForKids/App.axaml

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

AppForKids/App.axaml.cs

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

AppForKids/AppForKids.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+    <PropertyGroup>
+        <OutputType>WinExe</OutputType>
+        <TargetFramework>net8.0</TargetFramework>
+        <Nullable>enable</Nullable>
+        <BuiltInComInteropSupport>true</BuiltInComInteropSupport>
+        <ApplicationManifest>app.manifest</ApplicationManifest>
+        <AvaloniaUseCompiledBindingsByDefault>true</AvaloniaUseCompiledBindingsByDefault>
+    </PropertyGroup>
+
+    <ItemGroup>
+        <PackageReference Include="Avalonia" Version="11.2.1"/>
+        <AvaloniaResource Include="assets/**" />
+        <PackageReference Include="Avalonia.Desktop" Version="11.2.1"/>
+        <PackageReference Include="Avalonia.Themes.Fluent" Version="11.2.1"/>
+        <PackageReference Include="Avalonia.Fonts.Inter" Version="11.2.1"/>
+        <!--Condition below is needed to remove Avalonia.Diagnostics package from build output in Release configuration.-->
+        <PackageReference Include="Avalonia.Diagnostics" Version="11.2.1">
+            <IncludeAssets Condition="'$(Configuration)' != 'Debug'">None</IncludeAssets>
+            <PrivateAssets Condition="'$(Configuration)' != 'Debug'">All</PrivateAssets>
+        </PackageReference>
+        <PackageReference Include="Microsoft.EntityFrameworkCore" Version="8.0.11" />
+        <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="8.0.11">
+          <PrivateAssets>all</PrivateAssets>
+          <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+        </PackageReference>
+        <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="8.0.11" />
+    </ItemGroup>
+</Project>

AppForKids/MainWindow.axaml

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+<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="AppForKids.MainWindow"
+        Title="AppForKids">
+        <StackPanel HorizontalAlignment="Center" VerticalAlignment="Center" Spacing="10">
+                <TextBlock/>
+                <Button x:Name="ImageButton" Click="ImageButton_OnClick">
+                        <Image Width="200" 
+                               Height="200" 
+                               Source="avares://AppForKids/assets/dotnet-bot_branded.png"
+                               />
+                </Button>    
+                <TextBlock x:Name="ClickCounts"/>
+                <Button Width="200" Content="Открыть счет" x:Name="OpenScoreButton" Click="OpenScoreButton_OnClick"/>
+        </StackPanel>
+</Window>

AppForKids/MainWindow.axaml.cs

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+using AppForKids.models;
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+
+namespace AppForKids;
+
+public partial class MainWindow : Window
+{
+    private User? _currentUser = null;
+    public MainWindow(User user)
+    {
+        _currentUser = user;
+        InitializeComponent();
+        CountClickText();
+    }
+
+    private void CountClickText()
+    {
+        if (_currentUser == null) return;
+        ClickCounts.Text = $"Click count: {_currentUser.Clicks}";
+    }
+    private void OpenScoreButton_OnClick(object? sender, RoutedEventArgs e)
+    {
+        if(_currentUser == null) return;
+        new Score().ShowDialog(this);
+    }
+
+    private void ImageButton_OnClick(object? sender, RoutedEventArgs e)
+    {
+        using var dbContext = new KidsAppDbContext();
+        if(_currentUser == null) return;
+        _currentUser.Clicks += 1;
+        dbContext.Update(_currentUser);
+        if(dbContext.SaveChanges() > 0) CountClickText();
+    }
+}

AppForKids/Program.cs

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+using Avalonia;
+using System;
+
+namespace AppForKids;
+
+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();
+}

AppForKids/Registration.axaml

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+<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="AppForKids.Registration"
+        Title="Registration">
+    <StackPanel Spacing="15" HorizontalAlignment="Center" VerticalAlignment="Center">
+        <TextBlock Text="Введите логин"/>
+        <TextBox Width="300" x:Name="LoginTextBox" ></TextBox>
+        <TextBlock Text="Введите пароль"/>
+        <TextBox Width="300" PasswordChar="*" x:Name="PasswordTextBox" ></TextBox>
+        <StackPanel Spacing="5" Orientation="Horizontal">
+            <Button x:Name="RegisterClick" Click="RegisterClick_OnClick" Content="Зарегистрироваться"/>
+            <Button x:Name="LoginClick" Click="LoginClick_OnClick" Content="Войти"/>
+        </StackPanel>
+    </StackPanel>
+</Window>

AppForKids/Registration.axaml.cs

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+using System.Globalization;
+using System.IO;
+using System.Linq;
+using AppForKids.models;
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+using Avalonia.Markup.Xaml;
+
+namespace AppForKids;
+
+public partial class Registration : Window
+{
+    public Registration()
+    {
+        InitializeComponent();
+    }
+
+    private void RegisterClick_OnClick(object? sender, RoutedEventArgs e)
+    {
+        if(string.IsNullOrEmpty(LoginTextBox.Text)) return;
+        if(string.IsNullOrEmpty(PasswordTextBox.Text)) return;
+        using var dbContext = new KidsAppDbContext();
+        var user = new User { 
+            Clicks = 0, 
+            Name = LoginTextBox.Text, 
+            Password = PasswordTextBox.Text };
+        dbContext.Users.Add(user);
+        if (dbContext.SaveChanges() > 0)
+        {
+            new MainWindow(user).Show();
+            Close();
+        }
+    }
+
+    private void LoginClick_OnClick(object? sender, RoutedEventArgs e)
+    {
+        using var dbContext = new KidsAppDbContext();
+        if(string.IsNullOrEmpty(LoginTextBox.Text)) return;
+        if(string.IsNullOrEmpty(PasswordTextBox.Text)) return;
+        var user = dbContext.Users.FirstOrDefault(it => it.Name == LoginTextBox.Text);
+        if(user == null) return;
+        if (user.Password != PasswordTextBox.Text) return;
+        new MainWindow(user).Show();
+        Close();
+    }
+}

AppForKids/Score.axaml

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+<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:CompileBindings="False"
+        x:Class="AppForKids.Score"
+        Title="Score">
+        <DockPanel>
+                <ListBox x:Name="ScoreListBox" Scroll="">
+                        <ListBox.ItemTemplate>
+                                <DataTemplate>
+                                        <Border 
+                                                BorderThickness="3" 
+                                                BorderBrush="Black">
+                                                <StackPanel Spacing="5" Orientation="Horizontal">
+                                                        <TextBlock Text="{Binding Name}"/>
+                                                        <TextBlock Text="{Binding Clicks}"/>
+                                                </StackPanel>
+                                        </Border>
+                                </DataTemplate>
+                        </ListBox.ItemTemplate>
+                </ListBox>
+        </DockPanel>
+</Window>

AppForKids/Score.axaml.cs

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+using System.Collections.Generic;
+using System.Linq;
+using AppForKids.models;
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Markup.Xaml;
+using Avalonia.Media;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Color = System.Drawing.Color;
+
+namespace AppForKids;
+
+public partial class Score : Window
+{
+    public Score()
+    {
+        InitializeComponent();
+        var dbContext = new KidsAppDbContext();
+        ScoreListBox.ItemsSource = dbContext.Users;
+    }
+}

AppForKids/app.manifest

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+<?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="AppForKids.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>

AppForKids/models/KidsAppDbContext.cs

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+using System;
+using System.Collections.Generic;
+using Microsoft.EntityFrameworkCore;
+
+namespace AppForKids.models;
+
+public partial class KidsAppDbContext : DbContext
+{
+    public KidsAppDbContext()
+    {
+    }
+
+    public KidsAppDbContext(DbContextOptions<KidsAppDbContext> options)
+        : base(options)
+    {
+    }
+
+    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;Password=123;Database=kids_app_db;Port=5432;Username=postgres");
+
+    protected override void OnModelCreating(ModelBuilder modelBuilder)
+    {
+        modelBuilder.Entity<User>(entity =>
+        {
+            entity.HasKey(e => e.Id).HasName("users_pkey");
+
+            entity.ToTable("users");
+
+            entity.Property(e => e.Id).HasColumnName("id");
+            entity.Property(e => e.Clicks).HasColumnName("clicks");
+            entity.Property(e => e.Name).HasColumnName("name");
+            entity.Property(e => e.Password).HasColumnName("password");
+            entity.Property(e => e.Url).HasColumnName("url");
+        });
+
+        OnModelCreatingPartial(modelBuilder);
+    }
+
+    partial void OnModelCreatingPartial(ModelBuilder modelBuilder);
+}

AppForKids/models/User.cs

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+using System;
+using System.Collections.Generic;
+
+namespace AppForKids.models;
+
+public partial class User
+{
+    public int Id { get; set; }
+
+    public string Name { get; set; } = null!;
+
+    public int Clicks { get; set; }
+
+    public string Password { get; set; } = null!;
+
+    public string? Url { get; set; }
+}