PopupEventHandler PopupEventHandler PopupEventHandler PopupEventHandler Delegate

定义

表示处理 Popup 类的 ToolTip 事件的方法。Represents the method that handles the Popup event of the ToolTip class.

public delegate void PopupEventHandler(System::Object ^ sender, PopupEventArgs ^ e);
public delegate void PopupEventHandler(object sender, PopupEventArgs e);
type PopupEventHandler = delegate of obj * PopupEventArgs -> unit
Public Delegate Sub PopupEventHandler(sender As Object, e As PopupEventArgs)

参数

sender
Object Object Object Object

事件源。The source of the event.

e
PopupEventArgs PopupEventArgs PopupEventArgs PopupEventArgs

有关事件的信息。Information about the event.

继承
PopupEventHandlerPopupEventHandlerPopupEventHandlerPopupEventHandler

注解

Popup可以取消事件,因为PopupEventArgs派生自CancelEventArgsThe Popup event can be canceled because PopupEventArgs derives from CancelEventArgs.

创建 PopupEventHandler 委托时,需要标识将处理该事件的方法。When you create a PopupEventHandler delegate, you identify the method that will handle the event. 若要将事件与事件处理程序关联,请将该委托的一个实例添加到事件中。To associate the event with your event handler, add an instance of the delegate to the event. 除非移除了该委托,否则每当发生该事件时就会调用事件处理程序。The event handler is called whenever the event occurs, unless you remove the delegate. 有关事件处理程序委托的详细信息,请参阅处理和引发事件For more information about event-handler delegates, see Handling and Raising Events.

扩展方法

GetMethodInfo(Delegate) GetMethodInfo(Delegate) GetMethodInfo(Delegate) GetMethodInfo(Delegate)

获取指示指定委托表示的方法的对象。Gets an object that represents the method represented by the specified delegate.

适用于

另请参阅