You probably need to post somewhere that there is a bug with your controls re this..
In your words Maya..."As
it turns out, the issue with GridViewGroupPanelItem is a kind of known one. For
the time being the way to go would be to work with NoXAML binaries and define
implicit style as illustrated in our documentation.
I would recommend you to follow the same approach with GridViewIndentCell as
This explains Sam why we never got a working example! :-)
Unfortunately we're flat out trying to get our product to market, so having to go through this to simply style a small part of a grid is not really time efficient. We'll probably just leave it and wait for this fix? Why can't these PARTs be exposed as a dependency property. Make life much easier!