Third party WinForms control correct binding?

[Metadorius]

I am working on a legacy project that relies on WinForms and third party control providers, DevExpress in this case. In order to incorporate separation of UI from business logic I decided to use this wonderful library, though, as expected, the support for third party controls is lacking so I have to implement custom bindings from events. It works fine to some extent when I do this for FocusedRowObject in GridView for example:

// ...
    public partial class DisciplinesView : XtraUserControl, IViewFor<DisciplinesViewModel>
    {
        public DisciplinesView()
        {
            InitializeComponent();

            this.WhenActivated(d =>
            {
                // ...
                d(gridView1.BindFocusedRow(ViewModel, vm => vm.SelectedDiscipline));
            });

            // ...
        }

    // ...

    public static class BindingExt
    {
        public static IDisposable BindFocusedRow<TViewModel, TTValue>(this GridView grid,
            TViewModel viewModel,
            Expression<Func<TViewModel, TTValue>> property)
            where TViewModel : class
        {
            return Observable.FromEventPattern<FocusedRowObjectChangedEventHandler, FocusedRowObjectChangedEventArgs>(
                    handler => grid.FocusedRowObjectChanged += handler,
                    handler => grid.FocusedRowObjectChanged -= handler)
                .Select(@event => @event.EventArgs.Row)
                .BindTo(viewModel, property);
        }
    }

ViewModel:

public class DisciplinesViewModel : ReactiveObject
    {
        [Reactive]
        public Discipline SelectedDiscipline { get; set; }


        //...

        private void AddDiscipline()
        {
            var discipline = new Discipline();
            DisciplineCache.AddOrUpdate(discipline);
            this.SelectedDiscipline = discipline;      // this line doesn't update view value
        }

        //...
}

Thing is, what I found is that binding is one-way (I think? I am a newbie to MVVM and ReactiveUI, so please bear with me 😅), so the value only propagates to ViewModel when I set it from View, but not vice versa. What am I doing wrong?

If that helps, I found that FocusedRowObject is a readonly property that reads value from a weak ref. I suspect that I need to somehow handle setting it manually via DevExpress' provided row focusing function. May that be it?

[Metadorius]

Update: I tried to hack in this (in the WhenActivated) and it worked:

d(this.WhenAnyValue(x => x.ViewModel.SelectedDiscipline).Subscribe(x => gridView1.FocusedRowHandle = gridView1.FindRow(x)));

But I feel this is more like a hack than a proper solution. Does anyone have an idea on how it would be better to do this?