<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2008/07/16/disabling-keyboard-navigation-on-the-combobox-control-in-flex/ -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
        xmlns:comps="comps.*"
        layout="vertical"
        verticalAlign="top"
        backgroundColor="white"  viewSourceURL="srcview/index.html">

    <mx:Array id="arr">
        <mx:Object label="One" />
        <mx:Object label="Two" />
        <mx:Object label="Three" />
        <mx:Object label="Four" />
        <mx:Object label="Five" />
        <mx:Object label="Six" />
        <mx:Object label="Seven" />
        <mx:Object label="Eight" />
        <mx:Object label="Nine" />
        <mx:Object label="Ten" />
    </mx:Array>

    <mx:Form>
        <mx:FormItem label="MXML:">
            <comps:MyComboBoxMXML id="comboBoxMXML"
                    dataProvider="{arr}" />
        </mx:FormItem>
        <mx:FormItem label="ActionScript:">
            <comps:MyComboBoxAS id="comboBoxAS"
                    dataProvider="{arr}" />
        </mx:FormItem>
    </mx:Form>

</mx:Application>