/**
* Inserts an item into the collection.
* The new option is added on the client-side during callback.
* @param integer the location where the item will be inserted.
* The current item at the place and the following ones will be moved backward.
* @param TListItem the item to be inserted.
* @throws TInvalidDataTypeException if the item being inserted is neither a string nor TListItem
*/
public function insertAt($index, $value)
{
parent::insertAt($index, $value);
if ($this->canUpdateClientSide()) {
$this->_hasChanged = true;
}
}
