public DiaDiemDAO() { db = new QuanLyTourEntities(); }
public KhachHangDAO() { db = new QuanLyTourEntities(); }
public DoanDAO() { db = new QuanLyTourEntities(); }
public ChiTietTourDAO() { db = new QuanLyTourEntities(); }
public TourDAO() { db = new QuanLyTourEntities(); }