ListGrid handler for group collapse and expand

[ludi]

Hello

I created a ListGrid with a group column in the following way:
setGroupStartOpen("all");
setGroupByField("group");

Is it possible to create a handler that will be invoked when the group was collapsed or expanded?
After expanding I need to select a specific ListGridRecord.

Thanks a lot

[yogihw]

I also need to implement a similar action. Specifically, I need to control how the groups behave when there are additions and deletions in the ListGrid. Currently (using version 2.0):

1. When a new row is added, the group it belongs to collapses by itself. I need it to stay expanded.
2. When a row is deleted and no more rows belong in a group, the group disappears. I need it to stay visible.