public LoggedInUserPage() {
      this.InitializeComponent();

      this.navigationHelper = new NavigationHelper(this);
      this.navigationHelper.LoadState += this.NavigationHelper_LoadState;
      this.navigationHelper.SaveState += this.NavigationHelper_SaveState;
    }
    public TestDetailPage() {
      this.InitializeComponent();

      this.navigationHelper = new NavigationHelper(this);
      this.navigationHelper.LoadState += this.NavigationHelper_LoadState;
      this.navigationHelper.SaveState += this.NavigationHelper_SaveState;
    }