https://stackoverflow.com/questions/6306597/problem-in-silverlight-tree-view-drag-and-drop#
Apparently, some code in this question is seriously messing up both the view and the editing properties. I'm trying to get to the edit now for 5 minutes, but it's unable to load. Is this a server problem or did the post really cause some trouble? The rest of SO works normally, but for that post I get 505 Gateway Timeout.
EDIT : I managed to edit the post, so now everything is back to normal. Still, it might be worth looking a bit deeper into it. Apparently a set of
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
characters can really, really mess up the layout and cause big trouble
A small demonstration
Here