kartik\grid\ActionColumn::init PHP Method

    public function init()
    {
        /** @noinspection PhpUndefinedFieldInspection */
        $this->_isDropdown = $this->grid->bootstrap && $this->dropdown;
        if (!isset($this->header)) {
            $this->header = Yii::t('kvgrid', 'Actions');
        }
        $this->parseFormat();
        $this->parseVisibility();
        parent::init();
        $this->initDefaultButtons();
        $this->setPageRows();
    }

 public function init()
 {
     $this->registerTranslations();
     Icon::map($this->grid->getView(), Icon::FA);
     parent::init();
     // TODO: Change the autogenerated stub
 }