How do I search for the Group types in the Visual Tree?

In WPF datagrid you are able to do groupings on the ICollectionView and the datagrid knows how to render them accordingly.

While I can tell from the ICollectionView how many groups I have, I don;t know where on Screen they开发者_如何学Go are. I would like to know when a Group is currently shown on my screen.

Therefore, I would like to know how I would search for any "group" type within a range of rows. Is this possible?

Many Thanks,

I found a working solution here:

Find all controls in WPF Window by type