Есть такой код:
MainWindow mainWindow = new MainWindow();
Grid gridServ = new Grid();
ServersGrid.Children.Add(gridServ);
TextBlock serverName = new TextBlock();
serverName.Text = "name";
serverName.HorizontalAlignment = HorizontalAlignment.Center;
serverName.VerticalAlignment = VerticalAlignment.Center;
serverName.FontFamily = new FontFamily("Segoe UI");
serverName.FontWeight = FontWeights.Bold;
serverName.FontSize = 13;
TextBlock serverDiscription = new TextBlock();
serverDiscription.Text = "discription";
serverDiscription.VerticalAlignment = VerticalAlignment.Center;
serverDiscription.HorizontalAlignment = HorizontalAlignment.Left;
serverDiscription.Margin = new Thickness(5, 0, 0, 0);
Button button = new Button();
button.Width = 80;
button.Height = size;
button.FontFamily = new FontFamily("Segoe UI");
button.FontWeight = FontWeights.Bold;
button.FontSize = 15;
button.Content = "Играть";
Style buttonStyle = new Style();
buttonStyle.Setters.Add(new Setter { Property = Control.FontFamilyProperty, Value = new FontFamily("Verdana") });
buttonStyle.Setters.Add(new Setter { Property = Control.BackgroundProperty, Value = new SolidColorBrush((Color)ColorConverter.ConvertFromString("#FFE82F2F")) });
buttonStyle.Setters.Add(new Setter { Property = Control.ForegroundProperty, Value = new SolidColorBrush(Colors.White) });
buttonStyle.Setters.Add(new EventSetter { Event = Button.ClickEvent, Handler = new RoutedEventHandler(mainWindow.Button_Click) });
buttonStyle.Setters.Add(new Setter { Property = Control.HorizontalAlignmentProperty, Value = HorizontalAlignment.Right });
buttonStyle.Setters.Add(new Setter { Property = Control.VerticalAlignmentProperty, Value = VerticalAlignment.Top });
buttonStyle.Setters.Add(new Setter { Property = Control.BorderThicknessProperty, Value = new Thickness(0) });
button.Style = buttonStyle;
Grid canvasBackground = new Grid();
canvasBackground.Background = new SolidColorBrush((Color)ColorConverter.ConvertFromString("#FFFFFFFF"));
canvasBackground.Height = size;
canvasBackground.Width = 792;
canvasBackground.HorizontalAlignment = HorizontalAlignment.Left;
canvasBackground.VerticalAlignment = VerticalAlignment.Top;
canvasBackground.Margin = new Thickness(0, margin, 0, 0);
Grid canvasName = new Grid();
canvasName.Background = new SolidColorBrush((Color)ColorConverter.ConvertFromString("#FFFFC453"));
canvasName.Height = size;
canvasName.Width = 120;
canvasName.HorizontalAlignment = HorizontalAlignment.Left;
canvasName.VerticalAlignment = VerticalAlignment.Center;
Grid canvasDiscription = new Grid();
canvasDiscription.Background = new SolidColorBrush((Color)ColorConverter.ConvertFromString("#FFFFFFFF"));
canvasDiscription.Height = size;
canvasDiscription.Width = 535;
canvasDiscription.HorizontalAlignment = HorizontalAlignment.Center;
canvasDiscription.VerticalAlignment = VerticalAlignment.Center;
canvasName.Children.Add(serverName);
canvasDiscription.Children.Add(serverDiscription);
canvasBackground.Children.Add(canvasName);
canvasBackground.Children.Add(canvasDiscription);
canvasBackground.Children.Add(button);
gridServ.Children.Add(canvasBackground);
Он рисует вот такую плашку на лаунчере (Название, описание, кнопка играть)
И мне нужно чтобы эти плашки появлялись при вызове метода в основном конструкторе, но они не появляются. Появляются только если нажать на тестовую кнопку button (см скрин)
Резюмирую. Так работает
private void Button_Click_1(object sender, RoutedEventArgs e)
{
Test();
}
А так не работает:
public MainWindow()
{
InitializeComponent();
Test(); // отсюда не работает
RunList();
}
Говорит эксепшн стаковерфлоу

Я же не могу сделать цикл в XAML- кто вам такое сказал?ItemsControlв помощь. А сейчас вы делаете бред. – EvgeniyZ Oct 21 '21 at 15:29