public ActionResult AddRecord(int carId, ServiceRecord Record)
        {
            Car car = _db.Cars.Find(carId);
            car.ServiceRecords.Add(Record);
            car.TimesServiced++;
            car.NextService = Record.NextService;
            car.LastService = Record.DateServiced;
            _db.Entry(car).State = EntityState.Modified;

            Record.Car = car;
            _db.ServiceRecords.Add(Record);
            _db.SaveChanges();
            return RedirectToAction("/../home/");
        }
 public ActionResult EditRecord(ServiceRecord Record)
 {
     _db.Entry(Record).State = EntityState.Modified;
     _db.SaveChanges();
     return RedirectToAction("View");
 }