How to open Dialog from Console App in Avalonia

Question

I have a Console Application that, at some point, creates a WPF Window, adds VM to Datacontext, and shows window as Dialog. Console runs Further with DialogResult.

I tried the same with Avalonia, but did not get it working. All Examples work with App.axaml an the AppBuilder (That works, if i want an GUI only App)

When I create the Window as in WPF, I got Exceptions that IWindowPlatform can not be located.

Can I do that in Avalonia?

int main()
{
    var x = foo();
    // some Initiative code
    var view = MyView();
    var viewModel = MyViewModel(x);
    view.DataContext = viewModel;
    var result = view.ShowDialog();
    if(result==DialogResult.Ok)
    {
        var y = viewModel.Bar;

    }
}

Answer 1

This helper does the job, but Looks not as intended:

using System;
using Avalonia;
using Avalonia.Controls;
using Avalonia.ReactiveUI;

namespace Foo
{
    public class DialogService
    {
        private readonly Func<Window> windowFactory;

        public DialogService(Func<Window> windowFactory)
        {
            this.windowFactory = windowFactory;
        }
        public static AppBuilder BuildAvaloniaApp()
            => AppBuilder.Configure<App>()
                .UsePlatformDetect()
                .LogToTrace()
                .UseReactiveUI();

        internal void ShowDialog()
        {
            BuildAvaloniaApp()
            .Start(AppMain, Array.Empty<string>());
        }

        private void AppMain(Application app, string[] args)
        {
            var window = windowFactory();
            window.Show();
            app.Run(window);
        }
    }
}