Represents the method that handles a cancellable event.

[Visual Basic]
<Serializable>
Public Delegate Sub CancelEventHandler( _
   ByVal sender As Object, _
   ByVal e As CancelEventArgs _
)
[C#]
[Serializable]
public delegate void CancelEventHandler(
   object sender,
   CancelEventArgs e
);
[C++]
[Serializable]
public __gc __delegate void CancelEventHandler(
   Object* sender,
   CancelEventArgs* e
);

[JScript] In JScript, you can use the delegates in the .NET Framework, but you cannot define your own.

Parameters [Visual Basic, C#, C++]

The declaration of your event handler must have the same parameters as the CancelEventHandler delegate declaration.

sender

The source of the event.

e

A CancelEventArgs that contains the event data.

Remarks

When you create a CancelEventHandler delegate, you identify the method that will handle the event. To associate the event with your event handler, add an instance of the delegate to the event. The event-handler method is called whenever the event occurs, unless you remove the delegate. For more information about event-handler delegates, see Events and Delegates.

Example

For an example of how to use the CancelEventHandler delegate, please see the sample code in the CancelEventArgs class.

Requirements

Namespace: System.ComponentModel

Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family, .NET Compact Framework - Windows CE .NET

Assembly: System (in System.dll)

See Also

System.ComponentModel Namespace | CancelEventArgs