Collapse/Expand multiple GroupBox'es at a time

Support
#1

If I have multiple collapsable GroupBox elements on a page, how can I collapse/expand multiple boxes at a time? E.g. a button a to collapse all GropuBox’es at the same time.

Thanks.

#2

First of all you have to collect your GroupBoxes in some collection (e.g. List).


List<GroupBoxLayout> groupBoxes = collectGroupBoxes();

Then you should set action to the button. Inside of this action you should iterate over all your elements and collapse or expand them:


expandButton.setAction(new AbstractAction("expandGroupBoxes") {
    @Override
    public void actionPerform(Component component) {
        for (GroupBoxLayout groupBox : groupBoxes) {
            // expand GroupBox if it is collapsed, or collapse if expanded
            groupBox.setExpanded(!groupBox.isExpanded());
        }
    }
});
#3

Awesome, thanks Daniil! This works a treat.