public DataTable ToDataTableCar(Driver driver) { var driverCars = list.Where(item => item.Driver.ID == driver.ID).OrderByDescending(item => item.dateEnd); CarList carList = CarList.getInstance(); List <Car> cars = new List <Car>(); foreach (DriverCar driverCar in driverCars) { Car car = carList.getItem(driverCar.Car.ID); cars.Add(car); } return(carList.createTable(cars)); }