/**
* Retrieves the HTML string.
*
* @return string
*/
public function toHtml()
{
$dialog = new Dialog();
$dialog->bottom = new Bar();
$dialog->center = $this->content;
$dialog->bottom->right = $this->cancel->toHtml() . $this->confirm->toHtml();
$this->content = $dialog->toHtml();
return parent::toHtml();
}
