ExecutedRoutedEventArgs.Command 屬性

定義

命名空間:

System.Windows.Input

組件:

PresentationCore.dll

會拿到被召喚的指令。

public:
 property System::Windows::Input::ICommand ^ Command { System::Windows::Input::ICommand ^ get(); };

public System.Windows.Input.ICommand Command { get; }

member this.Command : System.Windows.Input.ICommand

Public ReadOnly Property Command As ICommand

屬性值

ICommand

與此事件相關的指揮部。

範例

以下範例會建立 ExecutedRoutedEventHandler 一個能處理多個指令的 。 處理器會 Command 檢查 上的 ExecutedRoutedEventArgs 屬性以決定要呼叫哪個方法。

private void ExecutedDisplayCommand(object sender,
    ExecutedRoutedEventArgs e)
{
    RoutedCommand command = e.Command as RoutedCommand;

    if(command != null)
    {
        if(command == MediaCommands.Pause)
        {
               MyPauseMethod();
        }
        if(command == MediaCommands.Play)
        {
               MyPlayMethod();
        }
        if(command == MediaCommands.Stop)
        {
               MyStopMethod();
        }
    }
}

Private Sub ExecutedDisplayCommand(ByVal sender As Object, ByVal e As ExecutedRoutedEventArgs)
    Dim command As RoutedCommand = TryCast(e.Command, RoutedCommand)

    If command IsNot Nothing Then
        If command Is MediaCommands.Pause Then
               MyPauseMethod()
        End If
        If command Is MediaCommands.Play Then
               MyPlayMethod()
        End If
        If command Is MediaCommands.Stop Then
               MyStopMethod()
        End If
    End If
End Sub

備註

與事件相關的指令可以投射到特定實作 ICommand，例如 RoutedCommand若已知型別，則可投射到。

另請參閱

• ExecutedRoutedEventHandler
• CommandBinding