public ActionResult Create(FormCollection collection, ProductDetail productDetail, int productID) { //Product product = _entities.Products.SingleOrDefault(a => a.ID == productID); try { //product.ProductDetails.Add(productDetail); _entities.AddToProductDetails(productDetail); _entities.SaveChanges(); return(RedirectToAction("Index", "ProductDetail", new { productID = productID })); } catch { return(View()); } }