public bool SaveOrder()
 {
     using (var db = new RepositoryNS.Repository())
     {
         using (var dbContextTransaction = db.Context.Database.BeginTransaction())
         {
             try
             {
                 List<Order> orders = new List<Order>();
                 if (Session["Cart"] != null)
                 {
                     orders = (List<Order>)Session["Cart"];
                     foreach (var or in orders)
                         db.Add(or);
                 }
                 db.Save();
                 dbContextTransaction.Commit();
                 return true;
             }
             catch (Exception ex)
             {
                 dbContextTransaction.Rollback();
                 return false;
             }
         }
     }
 }
        public ActionResult Delete(int Id)
        {
            using (var db = new RepositoryNS.Repository())
            {
                db.Delete<Order>(Id);
                db.Save();

            }
            List<Order> orders = (List<Order>)Session["Cart"];
            if (orders.Count == 0)
                return Redirect("/");
            var ord = orders.Where(x => x.Id != Id);
            Session["Cart"] = ord;
            return RedirectToAction("Index");
        }
        public ActionResult AddToCard(string DateStart, string DateEnd)
        {
            try
            {
                List<Order> orders = new List<Order>();
                var carAmount = 0;
                var carName = "";
                using (var db = new RepositoryNS.Repository())
                {
                    var carID = ((Order)Session["tempOrder"]).CarId;
                    carAmount = db.Context.Car.Where(x => x.Id == carID).Select(x => x.BaseAmount).FirstOrDefault();
                    carName = db.Context.Car.Where(x => x.Id == carID).Select(x => x.Model ).FirstOrDefault();

                }
                var order = new Order();
                order.UserId = ((User)Session["user"]).Id;
                order.CarId = ((Order)Session["tempOrder"]).CarId;
                order.DateStart = DateTime.Parse(DateStart);
                order.DateEnd = DateTime.Parse(DateEnd);
             
                TimeSpan ts = (DateTime)order.DateEnd - (DateTime)order.DateStart;
                order.CassierId = 1;
                order.Amount = GetAmount(carAmount, false, ts.TotalHours);
                using (var db = new RepositoryNS.Repository())
                {
                    db.Add(order);
                    db.Save();

                }
                if (Session["Cart"] != null)
                {
                    orders = (List<Order>)Session["Cart"];
                    orders.Add(order);
                }
                else
                {
                    orders.Add(order);
                }
                Session["Cart"] = orders;
                return Redirect("/CarsCatalog");
            }
            catch (Exception ex)
            {
                return RedirectToAction("/CarsCatalog");
            }
        }