public ActionResult AddSave(FormCollection collection) { try { string surname = Convert.ToString(collection["Surname"]); string phone = Convert.ToString(collection["Phone"]); var contacts = phones.GetConList(); var maxId = contacts.Max(p => p.Id); Contact contact = new Contact() { Id = maxId + 1, Surname = surname, Phone = phone }; phones.Create(contact); return(RedirectToAction("Index")); } catch { return(View()); } }