public ActionResult VnResponse(VnPayResponse vnPayResponse)
        {
            var inforOrder = (InforOrder)Session["InforOrder"];

            ViewBag.infor = inforOrder;
            ViewBag.phi   = vnPayResponse;
            Pay pay  = new Pay();
            var user = (CheckUser)Session["Account"];

            if (inforOrder.id_order != 0)
            {
                if (vnPayResponse.vnp_ResponseCode != "00")
                {
                    return(RedirectToAction("HistoryDeal", "User"));
                }
                pay.UpdateOrder(vnPayResponse, inforOrder);
            }
            else
            {
                pay.AddOrder(vnPayResponse, user, inforOrder);
            }
            Session.Remove("InforOrder");
            return(View(vnPayResponse));
        }