My dataProvider is an ArrayCollection, which is populated using XML. var initXML:XML = <items> <item id="News" label="News" value_1="unchecked" value_2="unchecked" value_3="checked"/> <item id="BBC" label="The Web" value_1="unchecked" value_2="unchecked" value_3="checked"> <item id="BBC1" label="BBC Homepage" value_1="unchecked" value_2="unchecked" value_3="checked"> <item id="YouTube" label="YouTube" value_1="unchecked" value_2="unchecked" value_3="checked"/> <item id="GoogleMaps" label="Google Maps" value_1="unchecked" value_2="unchecked" value_3="checked"/> <item id="MSN" label="MSN" value_1="unchecked" value_2="unchecked" valu...