public frm_hoadon() { InitializeComponent(); bllkh = new BLL.BLL_khachhang(this); bllnv = new BLL.BLL_nhanvien(this); bllhh = new BLL.BLL_hanghoa(this); bllhd = new BLL.BLL_hoadon(this); }
public frm_thongke() { InitializeComponent(); bllhd = new BLL.BLL_hoadon(this); }