mustella/tests/gumbo/components/ComboBox/SWFs/comps/Custom_CB_large.mxml

<s:ComboBox
    xmlns:fx="http://ns.adobe.com/mxml/2009" 
    xmlns:mx="library://ns.adobe.com/flex/mx" 
    xmlns:s="library://ns.adobe.com/flex/spark"    
    creationComplete="makeBigArray()"
    dataProvider="{myBigDP}">

	<fx:Script>
		<![CDATA[												
			import mx.collections.ArrayCollection;			
			private var myArray:Array = [];			
			
			private function makeBigArray():void
			{			
				var i:uint = 0;
				var length:uint = 20000;
				
				for(i=0; i<length; i++) {			
					myArray.push("index " + i);
				}															
			}    		    		    		    		
			
			[Bindable]
    		public var myBigDP:ArrayCollection = new ArrayCollection(myArray);    										
		]]>
	</fx:Script> 
	
</s:ComboBox>