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();
}
