public ActionResult Edit([Bind(Include = "ID,Naam,Schaal,Omschrijving,OpVoorraad,Besteld,Prijs,CategorieID")] Product product) { if (ModelState.IsValid) { db.Entry(product).State = EntityState.Modified; db.SaveChanges(); return(RedirectToAction("Index")); } ViewBag.CategorieID = new SelectList(db.ProductCategories, "ID", "Naam", product.CategorieID); return(View(product)); }