I noticed that when I try to group on a column where the values are integer's I get an error from jqGrid. It looks like it is trying to perform string functions on an integer that is causing the problem…

As a work around I can loop through all my objects before making the jqGrid and convert them to string and it works.

Also, Can the grouping summary be on the same row as the grouping row? I find it to be better to only have one row with the details instead of two.

Any Thoughts?