public ItemPage()
		{
			InitializeComponent();
            DataContext = Model;
			_navigationHelper = new NavigationHelper(this);
			_navigationHelper.LoadState += NavigationHelper_LoadState;
		}
        public SectionPage()
        {
            this.InitializeComponent();

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

			// Hub is only supported in Portrait orientation
			DisplayInformation.AutoRotationPreferences = DisplayOrientations.Portrait;

			NavigationCacheMode = NavigationCacheMode.Required;

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