PictureBox.OnResize(EventArgs) 方法

定义

引发 Resize 事件。Raises the Resize event.

protected:
 override void OnResize(EventArgs ^ e);
protected override void OnResize (EventArgs e);
override this.OnResize : EventArgs -> unit
Protected Overrides Sub OnResize (e As EventArgs)

参数

e
EventArgs

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

注解

OnResize如果将 SizeMode 属性设置为 Zoom 、或,则方法将重新绘制图像 CenterImage StretchImageThe OnResize method redraws the image if the SizeMode property is set to Zoom, CenterImage, or StretchImage.

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.

OnResize 方法还允许派生类对事件进行处理而不必附加委托。The OnResize method also allows 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

OnResize(EventArgs) 在派生类中重写时,请确保调用基类的 OnResize(EventArgs) 方法,以便注册的委托接收事件。When overriding OnResize(EventArgs) in a derived class, be sure to call the base class' OnResize(EventArgs) method so that registered delegates receive the event.

适用于