To Show a SerialNo in  a FlexGrid:

       private void gridindex(C1FlexGrid flxName)

            {

                for (int i = 1; i < flxName.Rows.Count - 1; i++)

                {

                    if (flxName[i, "SCode"] + "" == "") { break; }

                    flxName[i, "SL NO"] = i;

                    counterflag = i;

                }

            }