UserSettingFrame.java 文件源码

private void comboCountry_Change(ItemEvent e) {
    if(comboCountry.getSelectedIndex() > 0) {
        List<Location> locs = locationDao.queryAllLocationsByPid(((Location)comboCountry.getSelectedItem()).id);
        if(locs.isEmpty()) {
            lblState.setVisible(false);
            comboState.setModel(new DefaultComboBoxModel());
            comboState.setVisible(false);
        } else {
            lblState.setVisible(true);
            DefaultComboBoxModel model = new DefaultComboBoxModel();
            model.addElement("请选择...");
            for(Location loc : locs)
                model.addElement(loc);
            comboState.setModel(model);
            comboState.setVisible(true);
        }
    } else {
        lblState.setVisible(false);
        comboState.setModel(new DefaultComboBoxModel());
        comboState.setVisible(false);
    }
}