Saving the State of a WPF Application Page

Question

I am creating a software in WPF, and, in the software, the User can load an image, and configure a map.

Basically, once the Image (of a map) is loaded the user can add

Answer 1

Perhaps you could save the Windows xaml on exit and reload on application start.

    public MainWindow()
    {
        InitializeComponent();
        Loaded += new RoutedEventHandler(MainWindow_Loaded);
        Closing += new CancelEventHandler(MainWindow_Closing);
    }


    void MainWindow_Loaded(object sender, RoutedEventArgs e)
    {
       LoadExternalXaml();
    }

    void MainWindow_Closing(object sender, CancelEventArgs e)
    {
        SaveExternalXaml();
    }


    public void LoadExternalXaml()
    {
        if (File.Exists(@"C:\Test.xaml"))
        {
            using (FileStream stream = new FileStream(@"C:\Test.xaml", FileMode.Open))
            {
                this.Content = XamlReader.Load(stream);
            }
        }
    }

    public void SaveExternalXaml()
    {
        using (FileStream stream = new FileStream(@"C:\Test.xaml", FileMode.Create))
        {
            XamlWriter.Save(this.Content, stream);
        }
    }