Determines whether the controls contained in a CommandField object support callbacks.
Assembly: System.Web (in System.Web.dll)
The method is a helper method used to determine whether the controls contained in a CommandField object support callbacks. The CommandField class does not support callbacks when the Select button is displayed. This method has been implemented to throw a NotSupportedException exception when the Select button is displayed.
This method is used primarily by control developers.
Classes that derive from the CommandField class can override this method to indicate whether the controls contained by the field support callbacks. To indicate that callbacks are supported, implement this method as an empty method that does not throw an exception; otherwise, throw an exception with a useful message describing why callbacks are not supported.
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.