thank you for your reply!

Sure, you're right! It was my fault!

It works fine!

I think that you misunderstand some thinkgs. Multilevel grouping has no sense if you group by the column with unique values (like by 'id'). Only if the grouping by the first level contains more as one items in the group. Only in the case the items from the group will be sorted by the second sorting criteria. I modified your demo to the following: http://jsfiddle.net/BHNHB/2/. It works without any problem.

Best regards
Oleg 

I want to dynamically group my table-data so I'm using the "groupingGroupBy" Method. I want a specific sort order for the groups (e.g. first group level ascending and second group level descending). But it seems as if only the first group is sorted. It has no effect on the second level group.

Take a look at the following jsFiddle: http://jsfiddle.net/BHNHB/

if you click on the link "click me to group" only the id's (first level group) are sorted descending. The second level group (forenames) are not sorted at all. I used the following code snippet for grouping:

 $('#table').jqGrid('groupingGroupBy', ['id', 'forename'], {
            groupOrder: ['desc', 'asc']
 });

Thanks and cheers!