How to use

isVisible

method

in

org.apache.wicket.markup.html.panel.Panel

protected boolean isButtonVisible()
{
 return super.isVisible();
}

@Override
public boolean isVisible() {
  return super.isVisible() && linksPanel.hasAnyLinks();
}

/**
 * @see org.apache.wicket.Component#isVisible()
 */
@Override
public boolean isVisible()
{
 if (visibility != null) {
  return visibility.isVisible();
 } else {
  return super.isVisible();
 }
}

/**
 * @see org.apache.wicket.Component#isVisible()
 */
@Override
public boolean isVisible()
{
 return super.isVisible() && (this.hasLink == true || subMenu.hasEntries());
}