ContextMenu.Opened 事件

定义

命名空间:
System.Windows.Controls
程序集:
PresentationFramework.dll

在上下文菜单的特定实例打开时发生。Occurs when a particular instance of a context menu opens.

public:
 event System::Windows::RoutedEventHandler ^ Opened;
public event System.Windows.RoutedEventHandler Opened;
member this.Opened : System.Windows.RoutedEventHandler 
Public Custom Event Opened As RoutedEventHandler

事件类型

RoutedEventHandler

示例

下面的示例演示如何使用 ContextMenu 事件： Opened 和 Closed 。The following example shows how use the ContextMenu events: Opened and Closed.

<ContextMenu Name="cm" Opened="OnOpened" Closed="OnClosed" StaysOpen="true">

void OnOpened(object sender, RoutedEventArgs e)
{
    cmButton.Content = "The ContextMenu Opened";
}
void OnClosed(object sender, RoutedEventArgs e)
{
    cmButton.Content = "The ContextMenu Closed";
}

Private Sub OnOpened(ByVal sender As Object, ByVal args As RoutedEventArgs)
    cmButton.Content = "The ContextMenu Opened"
End Sub

Private Sub OnClosed(ByVal sender As Object, ByVal args As RoutedEventArgs)
    cmButton.Content = "The ContextMenu Closed"
End Sub

注解

路由事件信息Routed Event Information
标识符字段Identifier field OpenedEvent
路由策略Routing strategy 冒泡Bubbling
委托Delegate RoutedEventHandler

适用于

另请参阅