MXML
<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2008/02/21/creating-a-custom-label-function-on-a-flex-popupmenubutton-control/ -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
layout="vertical"
verticalAlign="top"
backgroundColor="white">
<mx:Script>
<![CDATA[
private function getTeams(dp:XML, leagueAbbrev:String, divisionLabel:String):XMLList {
return dp.league.(@abbrev == leagueAbbrev).division.(@label == divisionLabel).team;
}
private function popUpMenuButton_labelFunc(item:Object):String {
return item.@label + " " + item.@name;
}
]]>
</mx:Script>
<mx:XML id="mlb" source="mlb.xml" />
<mx:XMLListCollection id="mlbXLC"
source="{getTeams(mlb, 'NL', 'West')}">
<mx:sort>
<mx:Sort>
<mx:fields>
<mx:SortField name="@label"
caseInsensitive="true" />
</mx:fields>
</mx:Sort>
</mx:sort>
</mx:XMLListCollection>
<mx:PopUpMenuButton id="popUpMenuButton"
dataProvider="{mlbXLC}"
labelFunction="popUpMenuButton_labelFunc" />
</mx:Application>
mlb.xml
<?xml version="1.0" encoding="utf-8" ?>
- <!-- http://blog.flexexamples.com/2007/12/04/sorting-xml-documents-using-an-xmllistcollection/
-->
- <root>
- <league label="American League" abbrev="AL">
- <division label="West">
<team label="Los Angeles" name="Angels of Anaheim" />
<team label="Seattle" name="Mariners" />
<team label="Oakland" name="Athletics" />
<team label="Texas" name="Rangers" />
</division>
- <division label="Central">
<team label="Cleveland" name="Indians" />
<team label="Detroit" name="Tigers" />
<team label="Minnesota" name="Twins" />
<team label="Chicago" name="White Sox" />
<team label="Kansas City" name="Royals" />
</division>
- <division label="East">
<team label="Boston" name="Red Sox" />
<team label="New York" name="Yankees" />
<team label="Toronto" name="Blue Jays" />
<team label="Baltimore" name="Orioles" />
<team label="Tampa Bay" name="Rays" />
</division>
</league>
- <league label="National League" abbrev="NL">
- <division label="West">
<team label="Arizona" name="Diamondbacks" />
<team label="Colorado" name="Rockies" />
<team label="San Diego" name="Padres" />
<team label="Los Angeles" name="Dodgers" />
<team label="San Francisco" name="Giants" />
</division>
- <division label="Central">
<team label="Chicago" name="Cubs" />
<team label="Milwaukee" name="Brewers" />
<team label="St. Louis" name="Cardinals" />
<team label="Houston" name="Astros" />
<team label="Cincinnati" name="Reds" />
<team label="Pittsburgh" name="Pirates" />
</division>
- <division label="East">
<team label="Philadelphia" name="Phillies" />
<team label="New York" name="Mets" />
<team label="Atlanta" name="Braves" />
<team label="Washington" name="Nationals" />
<team label="Florida" name="Marlins" />
</division>
</league>
</root>
