Use filter function and sort

          
<?xml version="1.0"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" width="600">
    <mx:Script>
        
        import mx.collections.*;
        public function sortAC():void {
            var sortA:Sort = new Sort();
            sortA.fields=[new SortField("label")];
            myAC.sort=sortA;
            myAC.refresh();
        }
        public function stateFilterFunc(item:Object):Boolean {
            return item.label >= "B" && item.label < "C";
        }
        public function filterAC():void {
            myAC.filterFunction=stateFilterFunc;
            myAC.refresh();
        }
        public function resetAC():void {
            myAC.filterFunction=null;
            myAC.sort=null;
            myAC.refresh();
        }
      
    </mx:Script>
    <mx:ArrayCollection id="myAC">
        <mx:Array id="myArray">
            <mx:Object label="A" data="AA" />
            <mx:Object label="B" data="BB" />
            <mx:Object label="C" data="CC" />
        </mx:Array>
    </mx:ArrayCollection>
    <mx:HBox width="100%">
        <mx:Button id="sortButton" label="Sort" click="sortAC();" />
        <mx:Button id="filterButton" label="Filter" click="filterAC();" />
        <mx:Button id="resetButton" label="Reset" click="resetAC();" />
    </mx:HBox>
    <mx:HBox width="100%">
        <mx:ComboBox id="cb2" rowCount="10" dataProvider="{myArray}" />
        <mx:ComboBox id="cb1" rowCount="10" dataProvider="{myAC}" />
    </mx:HBox>
</mx:Application>

Related examples in the same category

1.	Sort Collections
2.	Sort on Multiple Fields in a Collection

Use filter function and sort : Sort « Data Model « Flex

Related examples in the same category