public ActionResult Edit([Bind(Include = "RegionId,Name")] Region region) { if (ModelState.IsValid) { if (ValidateRegion.AlreadyExistsRegion(region)) { ModelState.AddModelError(string.Empty, "A região já existe na base de dados."); return(View(region)); } db.Entry(region).State = EntityState.Modified; db.SaveChanges(); return(RedirectToAction("Index")); } return(View(region)); }