The Validate method validates the last child control that is not validated and its ancestors up through, but not including, the current container control. This overloaded version performs validation based on the following conditions:
If the checkAutoValidate parameter is true, validation always occurs for child controls that are not validated.
If the checkAutoValidate parameter is false, validation occurs only if the AutoValidate property of the control's parent is enabled.
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)