// GET: Carts public ActionResult AddItemToCart(int ItemId, int qty) { var cart = carthelper.GetCart(); var cartId = cart.CartNumber; var item = db.Items.FirstOrDefault(u => u.Id == ItemId); if (item.Qty >= qty) { carthelper.AddItem(ItemId, qty, cartId); return(RedirectToAction("MyCart", "CartItems")); } else { return(RedirectToAction("OutofStock", "Items")); } }