public frmQuanLyKho()
 {
     InitializeComponent();
     ttkBUS = new ThongTinKho_BUS();
     eTTK   = new eThongTinKho();
     qlkBUS = new QuanLyKho_BUS();
     eQLK   = new eQuanLyKho();
 }
 public frmThongTinKho_dal()
 {
     InitializeComponent();
     ttkBUS = new ThongTinKho_BUS();
     ctkBUS = new ChiTietKho_BUS();
     eTTK   = new eThongTinKho();
     ect    = new eChiTietKho();
 }