public ActionResult AddTrip(Trip NewTrip) { if (NewTrip.Name != null && NewTrip.Name.Length > 0) { _repo.AddTrip(NewTrip); TempData["Success"] = "Trip was saved!"; return(RedirectToAction("Trip", new { id = NewTrip.Id })); } { TempData["WarningMessage"] = "yes"; return(RedirectToAction("Index")); } }