I have a requirement to re-implement grid grouping but instead of grouping within the grid itself, I need to generate a separate tree view outside of the grid element. The tree view side of it is fine, but I couldn't see any way that I could set the grid to be groupable (thus showing the groups bar) without grouping being applied to the grid itself. I tried preventingDefault on the group function but this prevented the columns being dropped onto the group bar itself as it seems to be something that occurs after the grid has refreshed.
So now, instead, what I'm trying to do is add a div outside the grid that I can use as a drop target for my grid columns to be dropped on to but this doesn't seem to be working
Here's the dojo: http://dojo.telerik.com/@mancmanomyst/AJoBIj
Could you point me in the right direction for allowing the grid columns to be dropped on my target div?