Closed Listgroup cause selected items to get unselected

asked 2013-07-27 21:40:47 +0800

gyowanny
283 ● 1 ● 2 ● 6

I have a listbox with a SimpleGroupsModel set. When I select some items from a given group and click on the group's header to close it then it makes the items unselected when I run myList.getSelectedItems(). When I open the group again the items are selected again. So my questions are:

1. Why the heck we have that weird behavior on Grouped lists and why there isn't a property in the Listgroup class like 'setClosable(boolean)'? This is impossible that only me is looking for such behavior.

2. Is there a way to freeze the Listgroup headers to prevent them to be closed?

Thank you,

Gyo