Control.OnSizeChanged(EventArgs) 方法

定义

命名空间:
System.Windows.Forms
程序集:
System.Windows.Forms.dll

引发 SizeChanged 事件。Raises the SizeChanged event.

protected:
 virtual void OnSizeChanged(EventArgs ^ e);
protected virtual void OnSizeChanged (EventArgs e);
abstract member OnSizeChanged : EventArgs -> unit
override this.OnSizeChanged : EventArgs -> unit
Protected Overridable Sub OnSizeChanged (e As EventArgs)

参数

e
EventArgs

包含事件数据的 EventArgs。An EventArgs that contains the event data.

注解

引发事件时，将通过委托调用事件处理程序。Raising an event invokes the event handler through a delegate. 有关详细信息，请参阅 处理和引发事件。For more information, see Handling and Raising Events.

OnSizeChanged方法还使派生类可以处理事件，而无需附加委托。The OnSizeChanged method also enables derived classes to handle the event without attaching a delegate. 这是在派生类中处理事件的首选技术。This is the preferred technique for handling the event in a derived class.

继承者说明

在派生类中重写 OnSizeChanged(EventArgs) 时，一定要调用基类的 OnSizeChanged(EventArgs) 方法，以便已注册的委托对事件进行接收。When overriding OnSizeChanged(EventArgs) in a derived class, be sure to call the base class's OnSizeChanged(EventArgs) method so that registered delegates receive the event.

适用于

另请参阅