public ActionResult UpdatePriceList(long ItemId, PriceList priceList, string sessionId)
        {
            if (priceList.Supplier1Name == priceList.Supplier2Name || priceList.Supplier2Name == priceList.Supplier3Name || priceList.Supplier3Name == priceList.Supplier1Name)
            {
                TempData["errorMsg"] = "<script>alert('Please select three different suppliers.');</script>";
                return(RedirectToAction("UpdateNext", new { itemId = ItemId, sessionid = sessionId }));
            }
            else
            {
                priceList.Item        = new Inventory();
                priceList.Item.ItemId = ItemId;
                PriceListService.UpdatePriceList(priceList);

                List <Inventory> catalogues = CatalogueService.GetAllCatalogue();
                ViewData["catalogues"] = catalogues;
                return(RedirectToAction("All", new { sessionid = sessionId }));
            }
        }