<?xml version="1.0" encoding="utf-8"?>
<mx:Application 
viewSourceURL="@mx-professional-flex-code-06-FilteringCollections.html" xmlns:mx="http://www.adobe.com/2006/mxml">

	<mx:Script>
		<![CDATA[
		
			import mx.collections.SortField;
			import mx.collections.Sort;
			import mx.collections.ArrayCollection;
			
			public function sortCollection():void
			{
				var sort:Sort = new Sort();
				sort.fields = [new SortField("label", true, true)];
				myCollection.sort = sort;
				myCollection.refresh();
			}
			
			public function filterCollection():void
			{
				myCollection.filterFunction = stateFilterFunc;
				myCollection.refresh();
			}
			
			private function stateFilterFunc(item:Object):Boolean
			{
				return item.label >= "A" && item.label < "N";
			}
			
			private function resetCollection():void
			{
				myCollection.filterFunction = null;
				myCollection.sort = null;
				myCollection.refresh();
			}
			
		]]>
	</mx:Script>
	
	<mx:ArrayCollection id="myCollection">
		<mx:Array>
			<mx:Object label="LA" data="Baton Rouge" />
			<mx:Object label="NH" data="Concord" />
			<mx:Object label="TX" data="Austin" />
			<mx:Object label="MA" data="Boston" />
			<mx:Object label="AZ" data="Phoenix" />
		</mx:Array>
	</mx:ArrayCollection>
	
	<mx:List dataProvider="{myCollection}" width="200" />
	<mx:Button label="Sort Collection" click="sortCollection()" />
	<mx:Button label="Filter Collection" click="filterCollection()" />
	<mx:Button label="Reset Collection" click="resetCollection()" />
	
</mx:Application>