Flex tree 模糊查询节点，重复节点再次查询自动下一个

//根据关键字查找节点
private var temp:int = 0;
private function searchCategory(key:String):void {
var list:XMLList  = goodsModel.categorys.descendants().(@name.indexOf(key) != -1);
if(key.length == 0) {
closeAllCategory();
} else {
if(list.length() == 0) {
Alert.show("没有找到相关信息！请重试","提示");
} else if(list.length() == 1) {
//展开并选中
expandParents(list[0]);
myTree.selectedItem = list[0];
//显示信息  根据查询的节点显示节点的详细信息  方法没写
findCategoryById(XML(list[0]).@id);
} else if(list.length() > 1) {
if(temp < list.length()) {
expandParents(list[temp]);
myTree.selectedItem = list[temp];
} else {
temp = 0;
expandParents(list[temp]);
myTree.selectedItem = list[temp];
}
findCategoryById(XML(list[temp]).@id);
temp ++;
}
}
}