Having Trouble Setting Window's Owner in Parent's Constructor

Question

Is there anything wrong in WPF with setting the Owner property of a window to its parent in that parent\'s constructor? There shouldn\'t be, right? So why am I getting an

Answer 1

I ended up subscribing to Window.Activated, not Window.StateChanged. Be sure to unsubscribe to it in the handler, as advised in the comments.

    private void OnActivated(object sender, EventArgs eventArgs)
    {
        owned.Owner = this;
        Activated -= OnActivated;
    }

I accepted dlev's answer because it led me directly to finding the answer, even if his didn't work for my exact situation.