public bool TryUpdate(Car car) {
Car oldCar;
if (_carsDictionary.TryGetValue(car.Id, out oldCar)) {
return _carsDictionary.TryUpdate(car.Id, car, oldCar);
}
return false;
}
public Car Add(Car car) {
lock (_incLock) {
car.Id = _nextId;
_carsDictionary.TryAdd(car.Id, car);
_nextId++;
}
return car;
}
public void Add(Car car) {
int maxId = 1;
if (cars.Any()) {
maxId = cars.Max(x => x.Id);
}
car.Id = maxId + 1;
cars.Add(car);
}
