public KhachSanDao() { db = new DuLich_DataBase(); }
public KhachHangDao() { db = new DuLich_DataBase(); }
public DiaDiemDao() { db = new DuLich_DataBase(); }
public TaiKhoanDao() { db = new DuLich_DataBase(); }
public DichVuDao() { db = new DuLich_DataBase(); }
public TourDao() { db = new DuLich_DataBase(); }
public TinTucDao() { db = new DuLich_DataBase(); }