This class should be used as the base for classes that encapsulate the data for events that can be canceled.

It provides a Cancel property that can be set by the client of the event to indicate that the action that raised the event should be aborted.

public class CancelEventArgs : EventArgs {
// Public Constructors
   public CancelEventArgs();
   public CancelEventArgs(bool cancel);
// Public Instance Properties
   public bool Cancel{set; get; }
}

Hierarchy

System.Object System.EventArgs CancelEventArgs

Subclasses

System.Drawing.Printing.PrintEventArgs, System.Windows.Forms.{InputLanguageChangingEventArgs, TreeViewCancelEventArgs}

Passed To

CancelEventHandler.{BeginInvoke(), Invoke()}, System.Windows.Forms.Control.OnValidating(), System.Windows.Forms.FileDialog.OnFileOk(), System.Windows.Forms.Form.OnClosing()