Menu.OnDataBinding(EventArgs) 方法

定义

引发 DataBinding 事件。Raises the DataBinding event.

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

参数

e
EventArgs

包含事件数据的 MenuEventArgsA MenuEventArgs that contains the event data.

注解

DataBinding当数据绑定到控件时,将引发事件 MenuThe DataBinding event is raised when data is bound to the Menu control. 此方法通知控件执行与其关联的任何数据绑定逻辑。This method notifies the control to perform any data-binding logic that is associated with it.

OnDataBinding方法允许派生类在不附加委托的情况下处理事件。The OnDataBinding method 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.

在扩展类时,控件开发人员通常会使用此方法 MenuThis method is generally used by control developers when extending the Menu class.

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.

继承者说明

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

适用于

另请参阅