<mx:List
    xmlns:fx="http://ns.adobe.com/mxml/2009"
    xmlns:mx="library://ns.adobe.com/flex/mx"
    xmlns:s="library://ns.adobe.com/flex/spark"
    selectedIndex="1"
    width="150" height="120"
    layoutDirection="rtl"
    direction="rtl" >

    <mx:dataProvider>
    	<mx:ArrayCollection>
				<fx:String>one</fx:String>
				<fx:String>.-</fx:String>
				<fx:String>=</fx:String>
				<fx:String>-=</fx:String>
				<fx:String>I</fx:String>

		</mx:ArrayCollection>
	</mx:dataProvider>

</mx:List>