public JsonResult LoadGoodsNos(string term)
        {
            //读取所有货物档案数据
            string strErrText = string.Empty;
            DDSystem dd = new DDSystem();
            List<Goods> listGoods = dd.LoadAllGoodsByGoodsNo(term, LoginAccountId, LoginStaffName, out strErrText);
            if (listGoods == null)
            {
                listGoods = new List<Goods>();
            }

            var ret = (
                from g in listGoods
                select new
                {
                    g.GoodsNo,
                    g.Name,
                    g.SpecModel,
                    g.GWeight,
                    g.Grade,
                    g.Packing,
                    g.PieceWeight
                }).ToArray();

            return Json(ret, JsonRequestBehavior.AllowGet);
        }