Binding.OnFormat(ConvertEventArgs) 方法

定义

引发 Format 事件。Raises the Format event.

protected:
 virtual void OnFormat(System::Windows::Forms::ConvertEventArgs ^ cevent);
protected virtual void OnFormat (System.Windows.Forms.ConvertEventArgs cevent);
abstract member OnFormat : System.Windows.Forms.ConvertEventArgs -> unit
override this.OnFormat : System.Windows.Forms.ConvertEventArgs -> unit
Protected Overridable Sub OnFormat (cevent As ConvertEventArgs)

参数

cevent
ConvertEventArgs

一个包含事件数据的 ConvertEventArgsA ConvertEventArgs 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.

OnFormat 方法还允许派生类对事件进行处理而不必附加委托。The OnFormat 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 OnFormat(ConvertEventArgs) 时,一定要调用基类的 OnFormat(ConvertEventArgs) 方法,以便已注册的委托对事件进行接收。When overriding OnFormat(ConvertEventArgs) in a derived class, be sure to call the base class's OnFormat(ConvertEventArgs) method so that registered delegates receive the event.

适用于

另请参阅