ApplicationCommands.Copy） 
<StackPanel> 
<StackPanel.ContextMenu> 
<ContextMenu> 
<MenuItem Command="ApplicationCommands.Properties" /> 
</ContextMenu> 
</StackPanel.ContextMenu> 
</StackPanel> 

StackPanel cmdSourcePanel = new StackPanel(); 
ContextMenu cmdSourceContextMenu = new ContextMenu(); 
MenuItem cmdSourceMenuItem = new MenuItem(); 

cmdSourcePanel.ContextMenu = cmdSourceContextMenu; 
cmdSourcePanel.ContextMenu.Items.Add(cmdSourceMenuItem); 

cmdSourceMenuItem.Command = ApplicationCommands.Properties; 

（2）如何指定快捷键？
XAML代码:

<Window.InputBindings> 
<KeyBinding Key="B" 
Modifiers="Control" 
Command="ApplicationCommands.Open" /> 
</Window.InputBindings> 

C#代码：

KeyGesture OpenKeyGesture = new KeyGesture( 
Key.B, 
ModifierKeys.Control); 

KeyBinding OpenCmdKeybinding = new KeyBinding(ApplicationCommands.Open,OpenKeyGesture); 
this.InputBindings.Add(OpenCmdKeybinding); 
//也可以这样（下面一句与上面两句的效果等同）： 
//ApplicationCommands.Open.InputGestures.Add(OpenKeyGesture); 

（3）如何Command Binding？

XAML代码：

<Window.CommandBindings> 
<CommandBinding Command="ApplicationCommands.Open" 
Executed="OpenCmdExecuted" 
CanExecute="OpenCmdCanExecute"/> 
</Window.CommandBindings> 

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

this.CommandBindings.Add(OpenCmdBinding);