public JsonResult Get()
        {
            if (Session["user"] == null)
            {
                return Json(new { success = false }, JsonRequestBehavior.AllowGet);
            }

            CustomerModel selfModel = new CustomerModel();
            List<Client> _res = new List<Client>();

            RoleModel roleModel = new RoleModel();
            Role adminRole = roleModel.findByName("Administrator");
            Role sellerRole = roleModel.findByName("Seller");
            User user = (User) Session["user"];

            if (user.Role.RoleId.Equals(adminRole.RoleId))
            {
                _res = selfModel.findAll().ToList();
            }
            else if (user.Role.RoleId.Equals(sellerRole.RoleId))
            {
                _res = selfModel.findBySellerId(user.UserId).ToList();
            }

            return Json(new {
                success = true,
                rowData = _res
            }, JsonRequestBehavior.AllowGet);
        }
        //
        // GET: /Seller/
        public JsonResult Get()
        {
            var roleModel = new RoleModel();
            Role sellerRole = roleModel.findByName("Seller");
            var sellerList = sellerRole.User.ToList();

            var _res = from U in sellerList
                       select new SellerViewModel
                       {
                            Name = U.Name
                            , UserId = U.UserId
                        };

            return Json(new
            {
                success = true,
                rowData = _res
            }, JsonRequestBehavior.AllowGet);
        }