/** * Client-side Value property can only be updated after the OnLoad stage. * @param string text content for the hidden field */ public function setValue($value) { if (parent::getValue() === $value) { return; } parent::setValue($value); if ($this->getActiveControl()->canUpdateClientSide() && $this->getHasLoadedPostData()) { $this->getPage()->getCallbackClient()->setValue($this, $value); } }