Focus on control using ReactiveUI?

Question

In WPF, I started using ReactiveUI a short space of time is a question that came to me, it would be possible to put the focus on a specific control through my MainViewModel, it would be possible also use conditions?

Examples are welcome, thanks.

Answer 1

Here's the ReactiveUI Way to do it (since the question is pretty vague, here's a General Answer)

public class MainViewModel
{
    public ReactiveCommand Focusify { get; set; }

    public MainViewModel()
    {
        Focusify = new ReactiveCommand();
    }
}

public class MainView : UserControl, IViewFor<MainViewModel>
{
    public MainView()
    {
        this.WhenAnyObservable(x => x.ViewModel.Focusify)
            .Subscribe(_ => someControl.Focus());
    }
}