public ActionResult EditClient(FormCollection formValues, int clientID) { if (formValues["Submit"].Equals("Zapisz", StringComparison.InvariantCultureIgnoreCase)) { ClientsRepository clientRepo = new ClientsRepository(); Client client = clientRepo.GetClient(clientID); UpdateModel <Client>(client); if (ValidateClient(client.ClientName, client.ClientPrefix)) { clientRepo.SubmitChanges(); } else { return(View(client)); } } return(RedirectToAction("Clients")); }