private void ShowColumn3 ( ) {
   DataView dv = ( DataView ) myGrid.DataSource;
   // set the filter to display only those rows that were modified.
   dv.RowStateFilter = DataViewRowState.ModifiedCurrent;
   // change the value of the CompanyName column for each modified row.

   foreach ( DataRowView drv in dv ) {
      Response.Write ( drv.Row [ 2 ] );
   }
}

Private Sub ShowColumn3 ( )
   Dim dv As DataView = CType ( myGrid.DataSource, DataView )
   ' set the filter to display only those rows that were modified.
   dv.RowStateFilter = DataViewRowState.ModifiedCurrent
   ' change the value of the CompanyName column for each modified row.
   Dim drv As DataRowView
   For Each drv In  dv
      Response.Write ( drv.Row ( 2 ) ) )
   Next drv
End Sub