public void filterChanged(
boolean sort, boolean requiredLabelsChanged, boolean otherLabelsChanged) {
// Re-render what is needed
AjaxRequestTarget art = getRequestCycle().find(AjaxRequestTarget.class);
art.add(eventsList);
if (requiredLabelsChanged) {
art.add(requiredLabelsWrapper);
art.add(sidePanel.getRequiredLabelsWrapper());
}
if (otherLabelsChanged) {
art.add(sidePanel);
}
}
