public IActionResult Add(Repair r) { if (ModelState.IsValid) { Vehicle v = _vehicleRepository.GetVehicleById(r.VehicleId); if (r.VehicleMileage > v.Mileage) { v.Mileage = r.VehicleMileage; } _repository.CreateRepair(r); return(RedirectToAction("ListRepairs", new { vehicleId = r.VehicleId })); } return(View(r)); }//End Add() [Post]