tree组件点击标签展开、关闭节点

System.useCodepage = true;

var xml:XML = new XML();

xml.ignoreWhite = true;

var xmlListener:Object = new Object();

xmlListener.change = function(evt:Object) {

if (evt.target.getIsOpen(my_tr.selectedItem))

{

trace(1)

evt.target.setIsOpen(my_tr.selectedItem,false,true);

} else

{

evt.target.setIsOpen(my_tr.selectedItem,true,true);

}

};

xml.load("D:/wwwroot/GAMEs/data/book/1101.xml");

xml.onLoad = function(su) {

if (su)

{

my_tr.dataProvider = xml;

my_tr.addEventListener("change",xmlListener);

} else

{

trace(0);

}

};