/**
* Creates child control
* Override parent implementation to create a container which will contain all
* child controls. This container will be a TActivePanel, in order to allow user
* to update its content on callback.
*/
public function createChildControls()
{
if ($this->_container === null) {
$this->_container = new TActivePanel();
$this->_container->setId($this->getId(false) . '_content');
parent::getControls()->add($this->_container);
}
}
