Hi,
in my application there's a center region which contains a grid with groupingFeature.
After showing this all Groups are collapsed. Now i would like to integrate a button in toolbar where user can collapse/expand all groups.
I found this post and used code from #2 but it doesn't work.
http://www.sencha.com/forum/showthread.php?143617-Grids-CollapseAllGroups-amp-ExpandAllGroups
FF shows this error:
view.el is undefined
Can anybody help?