public ActionResult AddProduct(AddProductViewModel vm)

        {
            if (ModelState.IsValid)
            {
                vm.Product.Seller = UserManager.FindById(User.Identity.GetUserId()).UserName;
                productService.AddProducts(vm.Product);
                productService.AddImages(vm.Product, vm.File);
            }

            return(RedirectToAction("Index", "Home"));
        }