private void LoadThongTinTaiKhoan() { TaiKhoan_DTO tk = new TaiKhoan_DTO(); tk = tk_BUS.LayTTTKhoan(TaiKhoan.MaNV); if (tk.MaTaiKhoan == null) { txtMaNV1.Text = TaiKhoan.MaNV; txtMaTK1.Text = tk_BUS.LayMaLonNhat(); } else { txtMaTK1.Text = tk.MaTaiKhoan; txtMaNV1.Text = tk.MaNV; txtTenTK1.Text = tk.TenTaiKhoan; txtMatKhau1.Text = tk.MatKhau; cbbLoaiTK.SelectedValue = tk.LoaiTaiKhoan; } }