Наследование: Windows.UI.Xaml.DependencyObject
 public CreditsPage()
 {
     this.InitializeComponent();
     this.navigationHelper = new NavigationHelper(this);
     this.navigationHelper.LoadState += navigationHelper_LoadState;
     this.navigationHelper.SaveState += navigationHelper_SaveState;
 }
 public LevelSelect()
 {
     this.InitializeComponent();
     this.navigationHelper = new NavigationHelper(this);
     this.navigationHelper.LoadState += navigationHelper_LoadState;
     this.navigationHelper.SaveState += navigationHelper_SaveState;
 }
        public OptionsPage()
        {
            this.InitializeComponent();

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

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

            initView();
        }