private void btnDelete_Click(object sender, RoutedEventArgs e) { if (dgvHangHoa.SelectedItem != null) { DTO_HangHoa obj = new DTO_HangHoa(); obj = dgvHangHoa.SelectedItem as DTO_HangHoa; if (obj.TrangThai == true) { MessageBoxResult result = MessageBox.Show("Bạn muốn ngừng kinh doanh mặt hàng này?", "Confirmation", MessageBoxButton.YesNo); if (result == MessageBoxResult.Yes) { BUS_HangHoa.Delete(obj); dgvHangHoa.ItemsSource = BUS_HangHoa.showData(); } } else { BUS_HangHoa.Delete(obj); dgvHangHoa.ItemsSource = BUS_HangHoa.showData(); } } }