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<?php
class TDropDownList extends TListControl implements IPostBackDataHandler
{
protected function addAttributesToRender($writer)
{
$writer->addAttribute('name',$this->getUniqueID());
parent::addAttributesToRender($writer);
}
public function loadPostData($key,$values)
{
//TODO: Need to doublecheck!!@!
if(!$this->getEnabled(true))
return false;
$selections=isset($values[$key])?$values[$key]:null;
$this->ensureDataBound();
if($selections!==null)
{
$items=$this->getItems();
$selection=is_array($selections)?$selections[0]:$selections;
$index=$items->findIndexByValue($selection,false);
if($this->getSelectedIndex()!==$index)
{
$this->setSelectedIndex($index);
return true;
}
else
return false;
}
else if($this->getSelectedIndex()!==-1)
{
$this->clearSelection();
return true;
}
else
return false;
}
public function raisePostDataChangedEvent()
{
$page=$this->getPage();
if($this->getAutoPostBack() && !$page->getPostBackEventTarget())
{
$page->setPostBackEventTarget($this);
if($this->getCausesValidation())
$page->validate($this->getValidationGroup());
}
$this->onSelectedIndexChanged(null);
}
public function getSelectedIndex()
{
$index=parent::getSelectedIndex();
if($index<0 && $this->getItems()->getCount()>0)
{
$this->setSelectedIndex(0);
return 0;
}
else
return $index;
}
}
?>
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