/**
  * Overriding to keep info in sync.
  * @param QControl $objControl
  */
 public function AddChildControl(QControl $objControl)
 {
     parent::AddChildControl($objControl);
     if (count($this->objChildControlArray) == 1) {
         $this->strSelectedId = $objControl->strControlId;
         // default to first item added being selected
         $this->mixActive = 0;
     }
 }