Question

I need to bind to static properties in my App.xaml.cs class and have so far done this using:

Property="{Binding Source={x.Static Application.Current}, Path=SomePath}"

This works OK when the application is being run directly, but when the application is started from another application, these bindings don’t work as I believe Application.Current then points at the parent application rather than the application that the xaml sits under.

How would I bind to the immediate App.xaml.cs file properties rather than those from the parent application?

Hope that makes sense!

Answer 1

So one solution I’ve found so far is to put a class between App.xaml.cs and the XAML I’m trying to bind:

App.xaml.cs:

public partial class App : Application
{
    public static string SomeText;

    protected override void OnStartup(StartupEventArgs e)
    {
        base.OnStartup(e);
        SomeText = "Here is some text";
    }
}

MyProperties.cs:

public class MyProperties
{
    public static string SomeText
    {
        get { return App.SomeText; }
    }
}

MainWindow.xaml:

<Window.Resources>
    <local:MyProperties x:Key="properties"/>
</Window.Resources>

<Grid>
    <TextBlock Text="{Binding Source={StaticResource properties}, 
                              Path=SomeText}"/>
</Grid>

Any other suggestions are still more than welcome 🙂