public ActionResult UpdateCategory(Category category) { try { using (DatabaseQuery query = new DatabaseQuery()) { if (ModelState.IsValid) //check of de modelstate goed is { query.UpdateCategory(category); return RedirectToAction("CategoryOverview"); } } } catch (Exception e) { ViewBag.Error = "Er is iets fout gegaan met het updaten van de categorie: " + e; return RedirectToAction("ChangeCategory", category); } return RedirectToAction("category"); }