public ActionResult Duyet(int id)
        {
            if (Session["Ten_NV"] != null)
            {
                ViewBag.Ten_NV = Session["Ten_NV"].ToString();
            }
            if (Session["CHUCVU_NV"] != null)
            {
                ViewBag.CHUCVU_NV = Session["CHUCVU_NV"].ToString();
            }
            if (Session["Email_NV"] != null)
            {
                ViewBag.Email_NV = Session["Email_NV"].ToString();
            }
            var dao   = new DON_HANG_DAO();
            var model = dao.TimMaDH(id);

            if (model.TRANG_THAI == -1)
            {
                model.EMAIL_NV   = @ViewBag.Email_NV;
                model.TRANG_THAI = 0;
                new DON_HANG_DAO().UpdateDonHang(model);
                return(Json(new { success = 1 }));
            }
            return(Json(new { success = 0 }));
        }
        public ActionResult Edit(int MaDH)
        {
            var      td   = new DON_HANG_DAO();
            DON_HANG mode = td.TimMaDH(MaDH);

            return(View(mode));
        }