Change JComboBox selection on the basis of user confirmation

Question

Is there any way to keep user on old selected option from JComboBox. There is one confirmation I am asking to user when he/she wan't to change JComboBox's selected item, if user say yes, then only I want to keep new selection else set old item selected.

Is there any way to restrict JComboBox selection? I am using ItemListener and MouseListener to achieve above functionality.

Answer 1

ItemListener generally fires two events. The first is a DSESELECTED event (the old value) and a SELECTED event (the new value).

You could monitor these changes, recording the DESELECTED value as they occur

As a test, you could try something like this...

public void itemStateChanged(ItemEvent e) {
    if (e.getStateChange() == ItemEvent.SELECTED) {
        System.out.println("Selected :" + e.getItem());
    } else if (e.getStateChange() == ItemEvent.DESELECTED) {
        System.out.println("Deselected :" + e.getItem());
    }
}

If the user selects "no" to the change, you could restore the DESELECTED value...