CommandManager.PreviewCanExecute 附加事件

定義

發生於呼叫 CanExecute(Object, IInputElement) 上的 RoutedCommand 方法時。Occurs when the CanExecute(Object, IInputElement) method on the RoutedCommand is called.

see AddPreviewCanExecuteHandler, and RemovePreviewCanExecuteHandler
see AddPreviewCanExecuteHandler, and RemovePreviewCanExecuteHandler
see AddPreviewCanExecuteHandler, and RemovePreviewCanExecuteHandler

備註

路由事件資訊Routed Event Information

識別碼欄位Identifier field PreviewCanExecuteEvent
路由策略Routing strategy 建立Tunneling
Delegate - 委派Delegate CanExecuteRoutedEventHandler

適用於

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