public IHttpActionResult PutContact(int id, Contact changedContact) { if (!ModelState.IsValid) { return(BadRequest(ModelState)); } if (id != changedContact.ContactId) { return(BadRequest("Contact not found.")); } db.Entry(changedContact).State = EntityState.Modified; try { db.SaveChanges(); } catch (DbUpdateConcurrencyException) { if (!ContactExists(id)) { return(NotFound()); } else { throw; } } return(StatusCode(HttpStatusCode.NoContent)); }