public void OnFragmentNavigation(FragmentNavigationEventArgs e)
 {
     // display the current navigated fragment
     fragmentNav.BBCode = string.Format(CultureInfo.CurrentUICulture, "Current navigation fragment: '[b]{0}[/b]'", e.Fragment);
 }
 private void Frame_FragmentNavigation(object sender, FragmentNavigationEventArgs e)
 {
     LogMessage("FragmentNavigation: {0}\r\n", e.Fragment);
 }