function WAddFromListRepeatableComponentCollection()
 {
     parent::WRepeatableComponentCollection();
     $this->_addButton = WChooseOptionButton::withLabel($this->_addLabel);
     $this->_addButton->setParent($this);
 }
 /**
  * virtual constructor
  * @param string $event
  * @param string $label
  * @access public
  * @return ref object
  * @static
  */
 static function withEventAndLabel($event, $label)
 {
     $obj = new WChooseOptionButton();
     $obj->setEventAndLabel($event, $label);
     return $obj;
 }