对NavigatorContent应用Scroller

officeAnywhere项目：需要把form放在NavigatorContent内，折腾了半天都报错。查阅官方示例后发现，Scroller标签内必须有且只有一个容器（在此例中该容器为Group）。

<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
               xmlns:s="library://ns.adobe.com/flex/spark"
               xmlns:mx="library://ns.adobe.com/flex/mx">
    
    <mx:Accordion width="200" height="100" >
        <s:NavigatorContent  id="nc1" label="Accordion Pane 1" width="100%" height="100%">
            <s:Scroller width="100%" height="100%">
                <s:Group>
                    <mx:Form>
                        <mx:FormItem label="TEST 1">
                            <s:Label text="IDK"/>
                        </mx:FormItem>
                        <mx:FormItem label="TEST 2">
                            <s:Label text="IDK"/>
                        </mx:FormItem>
                        <mx:FormItem label="TEST 3">
                            <s:Label text="IDK"/>
                        </mx:FormItem>
                        <mx:FormItem label="TEST 4">
                            <s:Label text="IDK"/>
                        </mx:FormItem>
                        <mx:FormItem label="TEST 5">
                            <s:Label text="IDK"/>
                        </mx:FormItem>
                        <mx:FormItem label="TEST 6">
                            <s:Label text="IDK"/>
                        </mx:FormItem>
                    </mx:Form>
                </s:Group>
            </s:Scroller>
        </s:NavigatorContent>
        
        <s:NavigatorContent label="Accordion Pane 1" width="100%" height="100%">
            <s:Label text="Page 2"/>
        </s:NavigatorContent>
    </mx:Accordion>
    
</s:Application>