public MainPage()
        {
            this.InitializeComponent();
            string appName = Windows.ApplicationModel.Package.Current.DisplayName;

            //AppTitle.Text = appName;
            ContenFrame.Navigate(typeof(SkillsUI));
        }
        private void NavView_SelectionChanged(NavigationView sender, NavigationViewSelectionChangedEventArgs args)
        {
            if (args.IsSettingsSelected)
            {
                // ContenFrame.Navigate(typeof(SettingsPage));
            }

            NavigationViewItem item = args.SelectedItem as NavigationViewItem;

            switch (item.Tag.ToString())
            {
            case "skills":
                ContenFrame.Navigate(typeof(SkillsUI));
                break;

            case "ausruestung":
                break;

            case "hintergrund":
                break;
            }
        }