public bool FindRent()
        {
            bool found = false;

            Car car = Car.GetCarByLicensePlateNum(returnCarView.LicenseNumber);

            if (!string.IsNullOrEmpty(car.LicensePlateNum) && car.Status.Trim().Equals(EnumStatus.Wypożyczony.ToString()))
            {
                int  id   = car.GetId("numer rejestracyjny", car.LicensePlateNum);
                Rent rent = Rent.GetRentByCarId(id);
                if (rent != null)
                {
                    rent.Car           = car;
                    found              = true;
                    returnCarView.Rent = rent;
                }
            }
            return(found);
        }