<Window x:Class="_360Timer.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="Concentric Rings" Width="910" Height="512">
  <Canvas Name="MainCanvas" Background="#FFE0E0E0"/>
</Window>
//File:Window.xaml.cs


using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Media;
using System.Windows.Shapes;
using System.Windows.Media.Animation;


namespace _360Timer
{

    public partial class Window1 : Window
    {
        public Window1()
        {
            InitializeComponent();

            this.Show();

            this.KeyDown += new System.Windows.Input.KeyEventHandler(Window1_KeyDown);
        }

        void Window1_KeyDown(object sender, System.Windows.Input.KeyEventArgs e)
        {
            if (e.Key == System.Windows.Input.Key.Escape)
                this.Close();
        }

    }
}

   
    
     

   
  
<Window x:Class="_360Timer.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="Concentric Rings" Width="910" Height="512">
  <Canvas Name="MainCanvas" Background="#FFE0E0E0"/>
</Window>
//File:Window.xaml.cs


using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Media;
using System.Windows.Shapes;
using System.Windows.Media.Animation;


namespace _360Timer
{

    public partial class Window1 : Window
    {
        System.Windows.Threading.DispatcherTimer frameTimer;
        private int lastTick;
        private Random rand;

        public Window1()
        {
            InitializeComponent();

            this.WindowState = WindowState.Maximized;
            this.WindowStyle = WindowStyle.None;
            this.ResizeMode = ResizeMode.NoResize;
        }

        void Window1_KeyDown(object sender, System.Windows.Input.KeyEventArgs e)
        {
            if (e.Key == System.Windows.Input.Key.Escape)
                this.Close();
        }
    }
}

   
    
     

   
  

<Window x:Class="ApplicationShutdownSample.ChildWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="Application Shutdown Sample" Closing="ChildWindow_Closing" Closed="ChildWindow_Closed">
    <Grid>
    </Grid>
</Window>

//File:Window.xaml.cs
using System;
using System.ComponentModel;
using System.Windows;

namespace ApplicationShutdownSample
{
    public partial class ChildWindow : Window
    {
        public ChildWindow()
        {
            InitializeComponent();
        }

        void ChildWindow_Closing(object sender, CancelEventArgs e)
        {
            Console.WriteLine("Closing");
            MessageBoxResult result = MessageBox.Show("Allow Shutdown?", "Application Shutdown Sample", MessageBoxButton.YesNo, MessageBoxImage.Question);
            e.Cancel = (result == MessageBoxResult.No);
        }

        void ChildWindow_Closed(object sender, EventArgs e)
        {
            Console.WriteLine("Closed");
        }
    }
}

   
    
     

   
  



<Window x:Class="WpfApplication1.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="CommandHandlerProcedural"
    >
</Window>
//File:Window.xaml.cs

using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;
using System.Windows.Media;

namespace WpfApplication1
{
    public partial class Window1 : Window
    {
        public Window1()
        {
            InitializeComponent();
            
            StackPanel MainStackPanel = new StackPanel();
            this.AddChild(MainStackPanel);

            Button CommandButton = new Button();
            CommandButton.Command = ApplicationCommands.Open;
            CommandButton.Content = "Open (KeyBindings: Ctrl-R, Ctrl-0)";
            MainStackPanel.Children.Add(CommandButton);

            CommandBinding OpenCmdBinding = new CommandBinding(ApplicationCommands.Open,OpenCmdExecuted,OpenCmdCanExecute);

            this.CommandBindings.Add(OpenCmdBinding);

            KeyBinding OpenCmdKeyBinding = new KeyBinding(ApplicationCommands.Open,Key.R,ModifierKeys.Control);

            this.InputBindings.Add(OpenCmdKeyBinding);
        }

        void OpenCmdExecuted(object target, ExecutedRoutedEventArgs e)
        {
            MessageBox.Show("The command has been invoked.");
        }

        void OpenCmdCanExecute(object sender, CanExecuteRoutedEventArgs e)
        {
            e.CanExecute = true;
        }
    }
}

   
    
     

   
  


<Window x:Class="WpfApplication1.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="AppWindowsSample" Height="200" Width="300" 
    xmlns:my="clr-namespace:System;assembly=mscorlib">
  <StackPanel>
    <Menu Name="menu1" >
      <MenuItem Header="Window" x:Name="windowMenu">
        <MenuItem Header="SubmenuOpened event" />
      </MenuItem>
    </Menu>
    <Button Margin="10" Name="newWindowButton" Height="23" VerticalAlignment="Top">New Window</Button>
    <StatusBar Grid.Row="2" Name="statusBar1" >
      <TextBlock x:Name="statusText">Status</TextBlock>
    </StatusBar>
    <Button Height="23" Margin="10" Name="shutdownButton" VerticalAlignment="Top" >Shutdown</Button>
  </StackPanel>
</Window>
//File:Window.xaml.cs

using System;
using System.Collections.Generic;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;
using System.Windows.Controls.Primitives;
using System.Diagnostics;
using System.ComponentModel;


namespace WpfApplication1 {
  public partial class Window1 : System.Windows.Window {

    public Window1() {
      InitializeComponent();

      DataContext = Application.Current.Windows;
      statusText.Text = Application.Current.ShutdownMode.ToString();

      newWindowButton.Click += new RoutedEventHandler(newWindowButton_Click);
      shutdownButton.Click += new RoutedEventHandler(shutdownButton_Click);
      windowMenu.SubmenuOpened += new RoutedEventHandler(windowMenu_SubmenuOpened);
      Closing += Window1_Closing;
    }

    public void windowMenu_SubmenuOpened(object sender, RoutedEventArgs e) {
      windowMenu.Items.Clear();
      foreach( Window window in Application.Current.Windows ) {
        MenuItem item = new MenuItem();
        item.Header = window.Title;
        item.Click += windowMenuItem_Click;
        item.Tag = window;
        item.IsChecked = window.IsActive;
        windowMenu.Items.Add(item);
      }
    }

    public void windowMenuItem_Click(object sender, RoutedEventArgs e) {
      Window window = (Window)((MenuItem)sender).Tag;
      window.Activate();
    }

    public void newWindowButton_Click(object sender, RoutedEventArgs e) {
      Window window = new Window();
      window.Title = "Window " + DateTime.Now;
      window.Width = 200;
      window.Height = 100;
      window.Show();
      statusText.Text = Application.Current.ShutdownMode.ToString();
    }

    void shutdownButton_Click(object sender, RoutedEventArgs e) {
      Application.Current.Shutdown();
    }

    void Window1_Closing(object sender, CancelEventArgs e) {
      if( MessageBox.Show("Do you really want to shut down?", "Shutting Down", MessageBoxButton.YesNo) == MessageBoxResult.No ) {
        e.Cancel = true;
      }
    }


  }
}

   
    
     

One Million Numbers:

//File:Window.xaml.cs
using System.Windows;
using System.Windows.Threading;
using System.Collections.Generic;

namespace WpfApplication1
{
public partial class Window1 : Window
{
public Window1()
{
InitializeComponent();

}

private void Window_Loaded(object sender, RoutedEventArgs e)
{
this.Dispatcher.BeginInvoke(DispatcherPriority.Background,new LoadNumbersDelegate(LoadNumbers));
}
private delegate void LoadNumbersDelegate();
private void LoadNumbers()
{
List numberDescriptions = new List();
for(int i = 1; i <= 1000000; i++) { numberDescriptions.Add("Number " + i.ToString()); } listBox.ItemsSource = numberDescriptions; } } } [/csharp]

   
  

<Window x:Class="EightBall.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="Eight Ball Answer" Height="328" Width="412" >
  <Grid>
    <Grid.RowDefinitions>
      <RowDefinition Height="*" />
      <RowDefinition Height="Auto" />
      <RowDefinition Height="*" />
    </Grid.RowDefinitions>
    <Grid.Background>
      <LinearGradientBrush>
        <LinearGradientBrush.GradientStops>
          <GradientStop Offset="0.00"  Color="Red" />
          <GradientStop Offset="0.50" Color="Indigo" />
          <GradientStop Offset="1.00" Color="Violet" />
        </LinearGradientBrush.GradientStops>
      </LinearGradientBrush>
    </Grid.Background>
    <TextBox VerticalAlignment="Stretch" HorizontalAlignment="Stretch" Margin="10,10,13,10" Name="txtQuestion" 
             TextWrapping="Wrap" FontFamily="Verdana" FontSize="24"
             Grid.Row="0" >
      text
    </TextBox>
    <Button VerticalAlignment="Top" HorizontalAlignment="Left" Margin="10,0,0,20" Width="127" Height="23" Name="cmdAnswer"
            Click="cmdAnswer_Click" 
            Grid.Row="1">      
      Click
      </Button>
    <TextBox VerticalAlignment="Stretch" HorizontalAlignment="Stretch" Margin="10,10,13,10" Name="txtAnswer" 
             TextWrapping="Wrap" IsReadOnly="True" FontFamily="Verdana" FontSize="24" Foreground="Green"
             Grid.Row="2">
      text
    </TextBox>    
  </Grid>
</Window>

//File:Window.xaml.cs

using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;
using System.Windows.Input;

namespace EightBall
{
    public partial class Window1 : Window
    {

        public Window1()
        {
            InitializeComponent();
        }

        private void cmdAnswer_Click(object sender, RoutedEventArgs e)
        {           
            this.Cursor = Cursors.Wait;
            System.Threading.Thread.Sleep(TimeSpan.FromSeconds(1));

            txtAnswer.Text = "asdf";
            this.Cursor = null;
        }

    }
}