public SplitPage()
        {
            this.InitializeComponent();

            // Setup the navigation helper
            this.navigationHelper = new NavigationHelper(this);
            this.navigationHelper.LoadState += navigationHelper_LoadState;
            this.navigationHelper.SaveState += navigationHelper_SaveState;

            // Setup the logical page navigation components that allow
            // the page to only show one pane at a time.
            this.navigationHelper.GoBackCommand = new RelayCommand(() => this.GoBack(), () => this.CanGoBack());
            this.itemListView.SelectionChanged += ItemListView_SelectionChanged;

            // Start listening for Window size changes 
            // to change from showing two panes to showing a single pane
            Window.Current.SizeChanged += Window_SizeChanged;
            this.InvalidateVisualState();

            this.Unloaded += SplitPage_Unloaded;
        }
 public ItemsPage()
 {
     this.InitializeComponent();
     this.navigationHelper = new NavigationHelper(this);
     this.navigationHelper.LoadState += navigationHelper_LoadState;
 }