3. 3

4. 4

5. 5

6. 6 private void page2Button_Click(object sender, RoutedEventArgs e) { NavigationService.Navigate(new Uri("/PageTwo.xaml", UriKind.RelativeOrAbsolute)); }

7. 7

8. 8

9. 9

10. 10

11. 11 private void PhoneApplicationPage_BackKeyPress( object sender, System.ComponentModel.CancelEventArgs e) { e.Cancel = true; }

12. 12 private void PhoneApplicationPage_BackKeyPress( object sender, System.ComponentModel.CancelEventArgs e) { if (MessageBox.Show("Do you really want to exit?", "Page Exit", MessageBoxButton.OKCancel) != MessageBoxResult.OK) { e.Cancel = true; } }

13. 13

14. 14

15. 15 private void page3Button_Click(object sender, RoutedEventArgs e) { NavigationService.Navigate( new Uri("/PageThree.xaml?info=" + InfoTextBox.Text, UriKind.Relative)); }

16. 16

17. 17 protected override void OnNavigatedTo (System.Windows.Navigation.NavigationEventArgs e) { string info = ""; if (NavigationContext.QueryString.TryGetValue("info", out info) ) infoTextBlockFromQuery.Text = info; }

18. 18

19. 19

20. 20

21. 21 public partial class App : Application { // To be used from all pages in the application public string LoginName; }

22. 22 App thisApp = App.Current as App; LoginTextBox.Text = thisApp.LoginName;

23. 23

24. 24