public static ISalesItem CreateSalesItem(tbl_Sai item)
        {
            ISalesItem salesItem = SalesFactory.createNewSalesItem(item.Sai_, item.SaiNumber, item.SaiSah_, item.SaiPrd_,
                                                                   item.Saivat, item.Saidiscount);

            return(salesItem);
        }
        public static tbl_Sai CreateSalesItem(ISalesItem item)
        {
            tbl_Sai sai = new tbl_Sai();

            sai.SaiNumber   = item.SaiNumber;
            sai.SaiPrd_     = item.SaiPrdId;
            sai.Saidiscount = item.SaiDiscount;
            sai.SaiSah_     = item.SaiSahId;
            sai.Saivat      = item.Saivat;
            return(sai);
        }
        private static tbl_Sai LoadSalesItemByPrimaryKey(int primaryKey)
        {
            tbl_Sai sai = (from S in MerpDatabase().tbl_Sai where S.Sai_ == primaryKey select S).First();

            return(sai);
        }