public ItemPage() { InitializeComponent(); _navigationHelper = new NavigationHelper(this); _navigationHelper.LoadState += NavigationHelper_LoadState; }
public MainPage() { InitializeComponent(); DisplayInformation.AutoRotationPreferences = DisplayOrientations.Portrait; NavigationCacheMode = NavigationCacheMode.Required; _navigationHelper = new NavigationHelper(this); _navigationHelper.LoadState += NavigationHelper_LoadState; }