public ActionResult Delete(string[] selectedReservation)
        {
            int idReservation    = 0;
            int nbOfReservations = selectedReservation.Length;

            for (int i = 0; i < nbOfReservations; i++)
            {
                idReservation = Convert.ToInt32(selectedReservation[i].ToString());

                ReservationManager.DeleteRoomReservation(idReservation);

                ReservationManager.DeleteReservation(idReservation);
            }
            return(View("DeleteOk"));
        }