public IActionResult Create([Bind("CarSize, LicensePlate, DistanceInKm")] Car car) { car.IsBooked = false; bool isCarNew = _carRepo.CheckIfCarIsOnDatabase(car); if (isCarNew) { ViewBag.error = "Bilen med detta reg-nummret finns redan"; return(View("~/Views/Home/Index.cshtml")); } if (ModelState.IsValid) { _carRepo.Add(car); ViewBag.ok = $"Bilen med reg-nummer {car.LicensePlate} är tillagd"; return(View("~/Views/Home/Index.cshtml")); } return(View("~/Views/Car/CreateNewCar.cshtml")); }