InvalidOperationEventArgs Class

InvalidOperationEventArgs class for firing InvalidOperation event. You can prevent the default behaviour of MaskedEdit control which is to beep by setting the Beep property to false.
Public Class InvalidOperationEventArgs 
   Inherits System.EventArgs
public class InvalidOperationEventArgs : System.EventArgs 

Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

See Also