Flex中如何通过showAllDataTips属性，使鼠标移动到图表时显示所有的数据Tips
<?xml version="1.0" encoding="utf-8"?><mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="vertical" verticalAlign="middle" backgroundColor="white" viewSourceURL="srcview/index.html"> <mx:Script> <!]> </mx:Script> <mx:XML id="dp"> <products> <product label="Product 1" data="3" /> <product label="Product 2" data="1" /> <product label="Product 3" data="4" /> <product label="Product 4" data="1" /> <product label="Product 5" data="5" /> <product label="Product 6" data="9" /> </products> </mx:XML> <mx:PieChart id="pieChart" dataProvider="{dp.product}" dataTipFunction="pieChart_dataTipFunction" height="250" width="250" rollOver="pieChart_rollOver(event);" rollOut="pieChart_rollOut(event);"> <mx:series> <mx:PieSeries id="pieSeries" field="@data" /> </mx:series> </mx:PieChart></mx:Application>
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