AppStartupGuide.MainPage.MainPage C# (CSharp) Method

        public MainPage()
        {
            InitializeComponent();

            ApplicationView.PreferredLaunchViewSize = new Size(360, 640);
            ApplicationView.PreferredLaunchWindowingMode = ApplicationViewWindowingMode.PreferredLaunchViewSize;
            ApplicationView.GetForCurrentView().SetPreferredMinSize(new Size(360, 640));

            Loaded += (s, e) =>
            {
                UpdateBackgroundBounds();

                _loaded = true;
            };

            SizeChanged += (s, e) =>
            {
                PageHeight = ActualHeight;

                if (_loaded)
                {
                    UpdateBackgroundBounds();
                }
            };

            ScrollingHost.ViewChanged += (s, e) =>
            {
                UpdateBackgroundBounds();

                UpdateHeaders();
            };
        }