Is there anything that would prevent a group summary from working when there is also a detailModel defined?
I have the "summary" option set in the colModel for a column with dataType "float", and initially the grid displays with no grouping active. When a user clicks on a header cell, I change the groupModel to group by that dataIndx, but then the previously defined summary does not appear.
It seems that the summary can survive through the groupModel changing, as the "Row Grouping" demo has a button to turn it on and off, but I'm getting nothing.
I haven't tried removing the detailModel yet, but I'm wondering if that might be causing problems?