BKI_DichVuMatDat.NghiepVu.f340_dat_hs_lns_lcd.find_id_ma_lns C# (CSharp) Метод

        private decimal find_id_ma_lns(decimal ip_dc_id_hs_lns)
        {
            US_DM_HE_SO_LUONG_NS v_us = new US_DM_HE_SO_LUONG_NS();
            DS_DM_HE_SO_LUONG_NS v_ds = new DS_DM_HE_SO_LUONG_NS();

            v_us.FillDataset(v_ds);

            string v_str_filter = "ID = " + ip_dc_id_hs_lns;
            DataRow[] v_dr = v_ds.DM_HE_SO_LUONG_NS.Select(v_str_filter);

            if (v_dr.Count() == 0)
            {
                return -1;
            }
            else
            {
                return CIPConvert.ToDecimal(v_dr.First()["ID_MA_LNS"].ToString());
            }
        }