Invoke this method to reset the Control property to its default value.
Once this method is invoked, the ShouldSerializeControl method will return False until the Control property is set again.
After the ResetControl method has been invoked, the Control property of the PopupControlContainer will return null.
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