protected void onExpand() {
collapsed = false;
if (checkboxToggle && checkbox != null) {
checkbox.setChecked(true);
}
body.setVisible(true);
removeStyleName("x-panel-collapsed");
for (Component c : getItems()) {
if (!isComponentHidden(c) && c.isRendered()) {
doNotify(c, true);
}
}
updateIconTitles();
FieldSetEvent fe = new FieldSetEvent(this);
fireEvent(Events.Expand, fe);
}
