// GET: Purchases
        public ActionResult Index(string SessionId)
        {
            if (SessionId == null)
            {
                return(RedirectToAction("Index", "Login"));
            }
            Customer        C = CustomerData.GetCustomerBySessionId(SessionId);
            List <Purchase> PurchaseDetails = PurchaseData.GetPurchaseDetailsByCustomerId(C.CustomerId);
            int             cartQuantity    = CartData.GetCartQuantity(C.CustomerId);

            ViewData["PurchaseDetails"] = PurchaseDetails;
            ViewData["sessionId"]       = SessionId;
            ViewData["cartQuantity"]    = cartQuantity;

            return(View());
        }