private void btnLichBieuDinhKy_Click(object sender, RoutedEventArgs e)
 {
     if (ucLichBieuDinhKy == null)
     {
         ucLichBieuDinhKy = new UserControlLibrary.UCLichBieuDinhKy(mTransit);
     }
     spNoiDung.Children.Clear();
     ucLichBieuDinhKy.Height = spNoiDung.ActualHeight;
     ucLichBieuDinhKy.Width  = spNoiDung.ActualWidth;
     spNoiDung.Children.Add(ucLichBieuDinhKy);
 }
 private void btnLichBieuDinhKy_Click(object sender, RoutedEventArgs e)
 {
     if (ucLichBieuDinhKy == null)
     {
         ucLichBieuDinhKy = new UserControlLibrary.UCLichBieuDinhKy(mTransit);
     }
     spNoiDung.Children.Clear();
     ucLichBieuDinhKy.Height = spNoiDung.ActualHeight;
     ucLichBieuDinhKy.Width = spNoiDung.ActualWidth;
     spNoiDung.Children.Add(ucLichBieuDinhKy);
 }