public FDatHang()
{
InitializeComponent();
busSanPham = new BUS_SanPham();
busDonHang = new BUS_DonHang();
}
public FDonHang()
{
InitializeComponent();
// goi doi tuong BUS
bus_DonHang = new BUS_DonHang();
}
public FormChiTietDonHang()
{
InitializeComponent();
busDH = new BUS_DonHang();
chiTietTemp = new OrderDetail();
}
