'Declaration Public Function AddDuplicateCondition( _ ByVal regionAddress As String _ ) As DuplicateConditionalFormat
public DuplicateConditionalFormat AddDuplicateCondition( string regionAddress )
Use this method to add a condition which evaluates to true only for cell values which are non-unique across the associated range.
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