flex 中展开所有子节点

bustree.dataProvider = searchedList;
bustree.callLater(expandTree);

?

private function expandTree():void{
?
????for each(var obj1:CompInfoBindVo in searchedList)
????{
??????? ?if(obj1.type==BusInfoBindVo.TYPE_COMPANY)
??????? ?{
??????????????? ?bustree.expandChildrenOf(obj1 as Object,true);
??????????}

?? } }