Using || (or) notation

           

<?xml version="1.0"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">
  <mx:Script>
    
    [Bindable]
    public var xdata:XML = <order>
        <item id = "1">
          <description>A</description>
        </item>
        <item id = "2">
          <description>B</description>
        </item>
      </order>;
  </mx:Script>
  <mx:Label text="Using || (or) notation." />
  <mx:List width="25%" dataProvider="{xdata.item.(@id=='1'||@id=='2').description}" />
</mx:Application>

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Using || (or) notation : XML data « Data Model « Flex

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