LoginView.OnInit(EventArgs) 方法
定义
protected public:
override void OnInit(EventArgs ^ e);
protected internal override void OnInit (EventArgs e);
override this.OnInit : EventArgs -> unit
Protected Friend Overrides Sub OnInit (e As EventArgs)
参数
注解
OnInit方法执行控件的初始化 LoginView 。The OnInit method performs initialization for the LoginView control.
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
在派生类中重写 OnInit(EventArgs) 时,一定要调用基类的 OnInit(EventArgs) 方法,以便已注册的委托对事件进行接收。When overriding OnInit(EventArgs) in a derived class, be sure to call the base class's OnInit(EventArgs) method so that registered delegates receive the event.