[flexcoders] Data change in GroupingCollection

[Bernardo Salazar]

Hello,
i would like to know if there is a way to modify the data source in a
GroupingCollection, in the same way that an ArrayCollection. For
example, if I have a DataGrid with an ArrayCollection as dataProvider,
and I make it editable, then when it is edited I can fire an Event
with CollectionChange because the arrayCollection is in fact changing.
That doesn't happen with the GroupingCollection, any ideas? Thanx in
advance.