![](dotnetdiagramimages/GrapeCity_ActiveReports_Export_Excel_v10_GrapeCity_SpreadBuilder_DDSheetNameAlreadyExistsException.png)
'Declaration Public Class DDSheetNameAlreadyExistsException Inherits System.ArgumentException
public class DDSheetNameAlreadyExistsException : System.ArgumentException
System.Object
System.Exception
System.SystemException
System.ArgumentException
GrapeCity.SpreadBuilder.DDSheetNameAlreadyExistsException