Include Adorner in ScrollViewer scrollable region

Question

I currently have an Adorner inside a ScrollViewer. Objects at the bottom of the scrollviewer can sometimes display a large adorner below them. Unfortunately, that adorner is not included in the ExtentHeight of the scrollviewer, so the lower portion of the adorner is clipped by the bottom of the scrollviewer's viewport.

Is there a way to get the adorner layer's contents to be included in the scrollable region of the scrollviewer?

Answer 1

I'm afraid the consensus from other sources and hours of investigation seems to be that what I mentioned simply isn't possible. My solution has been simply to detect the last item in my ListBox and automatically add a margin to its bottom when my Adorner is being displayed. It's a bit of a hack, but it achieves the desired behavior mentioned above.