DynamicControl.OnInit(EventArgs) 方法
定义
protected:
override void OnInit(EventArgs ^ e);
protected override void OnInit (EventArgs e);
override this.OnInit : EventArgs -> unit
Protected Overrides Sub OnInit (e As EventArgs)
参数
事件数据。The event data.
例外
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.
OnInit 方法还允许派生类对事件进行处理而不必附加委托。The OnInit 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
当 OnInit(EventArgs) 在派生类中重写时,请确保调用基类的 OnInit(EventArgs) 方法,以便注册的委托接收事件。When overriding OnInit(EventArgs) in a derived class, be sure to call the base class' OnInit(EventArgs) method so that registered delegates receive the event.