public static object[] GetValuesByCols(this ICdlRecord record, DmlfColumnRef[] cols, DmlfResultFieldCollection result)
 {
     if (result == null) return record.GetValuesByCols(cols.GetNames());
     object[] values = new object[cols.Length];
     for (int i = 0; i < cols.Length; i++)
     {
         int index = result.GetColumnIndex(cols[i]);
         values[i] = record.GetValue(index);
     }
     return values;
 }