/**
* Sets the alternative text to be displayed in the TImage when the image is unavailable.
* @param string the alternative text
*/
public function setAlternateText($value)
{
if (parent::getAlternateText() === $value) {
return;
}
parent::setAlternateText($value);
if ($this->getActiveControl()->canUpdateClientSide()) {
$this->getPage()->getCallbackClient()->setAttribute($this, 'alt', $value);
}
}
