/**
* @return TListItem new item.
*/
protected function createNewListItem($text = null)
{
$item = new TListItem();
if ($text !== null) {
$item->setText($text);
}
return $item;
}
/**
* This method is invoked when <b>OnDataBinding</b> event is raised.
*
* Opens up the data source and creates all the TListItem controls
* needed to render the data source.
*
* @param TEventParameter event parameter
*/
protected function onDataBinding($param)
{
parent::onDataBinding($param);
if (is_null($this->dataSource)) {
return;
}
// Reset all values.
$this->items->clear();
$textField = $this->getDataTextField();
$valueField = $this->getDataValueField();
foreach ($this->dataSource as $key => $val) {
if ($val instanceof IListItemSource) {
$text = $val->getItemText();
$value = $val->getItemValue();
} else {
if (strlen($textField)) {
if (isset($val[$textField])) {
$text = $val[$textField];
} else {
throw new Exception('Invalid DataTextField property value');
}
} else {
$text = $val;
}
if (strlen($valueField)) {
if (isset($val[$valueField])) {
$value = $val[$valueField];
} else {
throw new Exception('Invalid DataValueField property value');
}
} else {
$value = $key;
}
}
$item = new TListItem();
$item->setText($text);
$item->setValue("{$value}");
$item->setSelected($this->SelectedValue == $value);
$this->items->add($item);
}
$this->dataSource = null;
}
