You must snoop into your app..
Via John Gossman...
At first, I could not believe this there would be a utlility that helped me troubleshoot my WPF bindings... but snoop does :) ...
This also walks you through Visual Tree ( a trick/utlity I use often now a days)
It just happened that I was messing w/ a dynamic layout for overflow stuff ... and snoop also looks handy because I can check exactly the size of my controls as I resize...
The direct link is https://www.blois.us/Snoop/ ... Definitely a MUST Download!!
[back to my overflow problems, using snoop :) ]