HI In your DataSet you get DataTable/TableAdaptor and their respective column. This/These Table/s act as just Skeleton to framework. You can Add a column name SerialNumber (DataType System.Int(32), AutoIncrement True, AutoIncrementSeed 1, AutoIncrementStep 1). After Build you can Get the SerialNumber field and you can use it in your report into the table. Thanks Ravidas