flex tree 自动显示横向滚动条
mxml
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" xmlns:cmp="com.render.*"
height="100%" width="100%" paddingTop="0" paddingBottom="0" paddingLeft="0" paddingRight="0">
<cmp:AutoSizeTree
id="checkTree"
itemRenderer="com.render.CheckTreeRenderer"
change="updataDataGrid()"
labelField="@label"
width="100%" height="100%"
horizontalScrollPolicy="auto" >
</cmp:AutoSizeTree>
</mx:Application>
actionscript
package com.render
{
import flash.events.Event;
import mx.controls.Alert;
import mx.controls.Tree;
import mx.core.ScrollPolicy;
import mx.core.mx_internal;
public class AutoSizeTree extends Tree
{
public function AutoSizeTree()
{
super();
horizontalScrollPolicy = ScrollPolicy.AUTO;
}
override public function get maxHorizontalScrollPosition():Number
{
if (isNaN(mx_internal::_maxHorizontalScrollPo
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<?xml version="1.0" encoding="utf-8"?>
<mx:WindowedApplication xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" creationComplete="creationHandler();">
<mx:Script>
<
