public async Task <IActionResult> Edit(int id, [Bind("ID,LongName,ShortName,FirstSeasonYear,LastSeasonYear")] Conference conference) { if (id != conference.ID) { return(NotFound()); } if (ModelState.IsValid) { try { _conferenceRepository.Update(conference); await _sharedRepository.SaveChangesAsync(); } catch (DbUpdateConcurrencyException) { if (!(await _conferenceRepository.ConferenceExists(conference.ID))) { return(NotFound()); } else { throw; } } return(RedirectToAction(nameof(Index))); } return(View(conference)); }