public ActionResult Add(int prodId)
        {
            SessionHelper sessonHlp = new SessionHelper();
            int qty = sessonHlp.GetProductQtyFromCart(prodId);

            A00964856_ShoppingCartEntities db = new A00964856_ShoppingCartEntities();
            ProductRepo prodRepo = new ProductRepo(db);
            CartItemRepo cartItemRepo = new CartItemRepo(prodRepo);
            CartItemModel item = cartItemRepo.GetCartItem(prodId, qty);

            return View(item);
        }
        public ActionResult ViewCart()
        {
            SessionHelper sessionHlp = new SessionHelper();
            Dictionary<int, int> sessionCart = sessionHlp.GetCart();
            
            A00964856_ShoppingCartEntities db = new A00964856_ShoppingCartEntities();
            ProductRepo prodRepo = new ProductRepo(db);
            CartItemRepo cartItemRepo = new CartItemRepo(prodRepo);
            List<CartItemModel> cartItems = cartItemRepo.GetAllCartItems(sessionCart);

            CheckoutCartModel checkoutCart = new CheckoutCartModel();
            checkoutCart.CartItems = cartItems;

            return View(checkoutCart);
        }