Grido\Components\Columns\Editable::getHeaderPrototype PHP Method

    public function getHeaderPrototype()
    {
        $th = parent::getHeaderPrototype();
        if ($this->isEditable()) {
            $th->setAttribute('data-grido-editable-handler', $this->link('editable!'));
            $th->setAttribute('data-grido-editableControl-handler', $this->link('editableControl!'));
        }
        return $th;
    }