private void us_object2grid(US_V_DM_BILL i_us
     , int i_grid_row,C1.Win.C1FlexGrid.C1FlexGrid i_fg)
 {
     DataRow v_dr = (DataRow)i_fg.Rows[i_grid_row].UserData;
     i_us.Me2DataRow(v_dr);
     m_obj_trans = get_trans_object(i_fg);
     m_obj_trans.DataRow2GridRow(v_dr, i_grid_row);
 }
            m_txt_so_bill.ForeColor = Color.Black;
        }

        private void set_search_so_bill_format_before()
        {
            if (m_txt_so_bill.Text == "")
            {