For the app I am developing I would like to have a list with sections that I can collapse or expand. The item in the sections can be clicked and open a DefaultSheet.
So, for example in the "Ubuntu UI toolkit Gallery" in the List Items tab, in "GroupedList", I would like to be able to click on "fruit" and collapse the list, and click again on it and expand the list.
How can I do that? Is that possible? (It is for ListItem.ValueSelector so it might be possible)
Thank you for your help.