public ActionResult AddProductSubmit(Product product, List <int> imageIDs)
        {
            int productID = productFactory.Insert(product);

            if (imageIDs != null)
            {
                for (int i = 0; i < imageIDs.Count; i++)
                {
                    Image img = imageFactory.Get(imageIDs[i]);
                    img.ProductID = productID;
                    imageFactory.Update(img);
                }
            }

            TempData["MSG"] = "A product has been added.";

            return(RedirectToAction("Products"));
        }