Hi all, 

I was trying to figure out the collapsing/expanding sections stuff, and I came across this forum post which was helpful, and certainly works,

http://es.infragistics.com/community/forums/t/94752.aspx

but I was left wondering why is it necessary to maintain an array of the collapsed sections if you can simply ask for the section in question

var sectionHeaderCell =  _grid.ResolveCellForPath (path);

and then ask the cell whether it is currently collapsed or not, and then return YES or NO as needed, for whether to collapse or not.

I haven't tried this 2nd technique yet, so maybe there's a good reason it woudn't work.