public ActionResult Edit(ProductModel model)
        {
            try
            {
                var        modelDB = new ProductDBModel();
                TB_PRODUCT product = new TB_PRODUCT();
                product.N_ID          = model.id;
                product.S_NAME        = model.productName;
                product.N_PRICE       = model.price;
                product.S_TYPE        = model.type;
                product.S_DESCRIPTION = model.description;
                modelDB.updateProductById(product);

                return(RedirectToAction("List"));
            }
            catch
            {
                return(View());
            }
        }