Switched to Avalonia

ParentAvalonia/MainWindow.axaml.cs

@@ -0,0 +1,77 @@
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+
+namespace ParentAvalonia;
+
+public partial class MainWindow : Window
+{
+    private readonly MainViewModel _vm;
+
+    public MainWindow()
+    {
+        InitializeComponent();
+        _vm = new MainViewModel();
+        DataContext = _vm;
+
+        Closed += async (_, __) =>
+        {
+            try { await _vm.DisposeAsync(); } catch { }
+        };
+    }
+
+    private async void StartChildren_Click(object? sender, RoutedEventArgs e)
+    {
+        try { await _vm.StartChildrenAsync(count: 3); }
+        catch (Exception ex) { await MessageBoxAsync(ex.Message); }
+    }
+
+    private async void PingSelected_Click(object? sender, RoutedEventArgs e)
+    {
+        try { await _vm.PingSelectedAsync(); }
+        catch (Exception ex) { await MessageBoxAsync(ex.Message); }
+    }
+
+    private async void StartWork_Click(object? sender, RoutedEventArgs e)
+    {
+        try { await _vm.StartWorkSelectedAsync(); }
+        catch (Exception ex) { await MessageBoxAsync(ex.Message); }
+    }
+
+    private async void CancelWork_Click(object? sender, RoutedEventArgs e)
+    {
+        try { await _vm.CancelWorkSelectedAsync(); }
+        catch (Exception ex) { await MessageBoxAsync(ex.Message); }
+    }
+
+    private async Task MessageBoxAsync(string message)
+    {
+        var dlg = new Window
+        {
+            Title = "Error",
+            Width = 500,
+            Height = 160,
+            Content = new StackPanel
+            {
+                Margin = new Avalonia.Thickness(12),
+                Spacing = 12,
+                Children =
+                {
+                    new TextBlock { Text = message, TextWrapping = Avalonia.Media.TextWrapping.Wrap },
+                    new Button
+                    {
+                        HorizontalAlignment = Avalonia.Layout.HorizontalAlignment.Right,
+                        Content = "OK",
+                        IsDefault = true
+                    }
+                }
+            }
+        };
+
+        if (dlg.Content is StackPanel sp && sp.Children.LastOrDefault() is Button ok)
+        {
+            ok.Click += (_, __) => dlg.Close();
+        }
+
+        await dlg.ShowDialog(this);
+    }
+}