public ActionResult Details(int id, DateTime? filterBeginDate, DateTime? filterEndDate) { var survey = _surveyRepository.GetNullableById(id); if (survey == null) { return this.RedirectToAction(a => a.Index()); //return RedirectToAction("Index"); } var viewModel = SurveyResponseDetailViewModel.Create(Repository, survey, filterBeginDate, filterEndDate); return View(viewModel); }