在WPF應用程式自訂Command

1.在WPF應用程式中加入一個類別

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Input;
namespace WpfApplication1 {
public class UICommands {
        public static RoutedUICommand ChangeBGColorCommand =
            new RoutedUICommand ( );
    }
}

2.在XAML Window 中加入命名空間
xmlns:cmd="clr-namespace:WpfApplication1"

3.加Window.CommandBindings

<Window.CommandBindings>
       <CommandBinding x:Name="changebg"  Executed="changebg_Executed"
                        Command="cmd:UICommands.ChangeBGColorCommand"
                       />
   </Window.CommandBindings>

4.寫changebg_Executed 事件

private void changebg_Executed ( object sender , ExecutedRoutedEventArgs e ) {
           this.button1.Background = new SolidColorBrush ( Colors.Red );
       }

5.在Window加入StackPanel 、Menu、MenuItem 、Button

<StackPanel >
        <Menu>
            <MenuItem Header="_Menu" >
                <MenuItem Header="Change "  
                          Command="cmd:UICommands.ChangeBGColorCommand"
                 />
             
            </MenuItem>
        </Menu>
        <Button Content="Button" Height="23" Name="button1" Width="75" />
    </StackPanel>

6.Run