i'm wanting to change the label of my groups in the AdvancedDataGrid, and I see where that's exposed via the groupingFunction. What i'm wanting to do is to modify it in such a way that it returns the groupingField "name" itself, plus the number of children in that group.
As an example, if I had the following data: DFW Jason DFW Darin DFW Bob ORD Peter ORD Juan I would want to the grid to display as follows: DFW (3) ORD (2) I'd like to indicate the number of children in each group without having to add an explicity column via a SummaryRow etc..

