Use XPath to get data

           
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="vertical">
    <mx:Script>
        
        private var xmlItems:XML = <order>
                            <item id="1">
                                <menuName>A</menuName>
                                <price>3.9</price>
                            </item>
                            <item id="2">
                                <menuName>B</menuName>
                                <price>1.5</price>
                            </item>
                        </order>
    
        private function init():void {
              xmlLabel.text = xmlItems.item.(@id == "2").menuName;
        }

  
    </mx:Script>
<mx:Label id="xmlLabel"/>
</mx:Application>

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Use XPath to get data : XML data « Data Model « Flex

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