'Declaration Protected Overrides Function IsResourceValid( _ ByVal id As SpreadsheetContextMenuArea, _ ByVal resource As Object _ ) As Boolean
protected override bool IsResourceValid( SpreadsheetContextMenuArea id, object resource )
For example, if the id represents a Bursh and a Pen is fould then this method should return false.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, 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