private void OnGridAutoCreateColumn(NAutoCreateColumnEventArgs arg)
        {
            NDataColumn dataColumn = arg.DataColumn;

            if (dataColumn.FieldName == "Action")
            {
                dataColumn.Format = new NButtonColumnFormat();
            }
        }
 void grid_AutoCreateColumn(NAutoCreateColumnEventArgs arg)
 {
     // get the data column which was automatically created
     NDataColumn dataColumn = arg.DataColumn;
 }