Get data length from ComboBox after removing the first item

       

<?xml version="1.0"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
    initialize="initData()">
    <mx:Script>
        
        import mx.collections.*;
        public var myArray:Array = ["A", "B", "C", "D", "E", "F"];
        
        [Bindable]
        public var myAC:ArrayCollection;
        public function initData():void {
            myAC = new ArrayCollection(myArray);
        }
        public function changeCollection():void {
            var oldLength:int = myAC.length;
        
            var removedItem:String = String(myAC.removeItemAt(0));
            
            var newLength:int=myAC.length;
            
            ta1.text =String(newLength);
        }
      
    </mx:Script>
    <mx:ComboBox id="myCB" rowCount="7" dataProvider="{myAC}" />
    <mx:TextArea id="ta1" height="75" width="300" />
    <mx:Button label="rearrange list" click="changeCollection();" />
</mx:Application>

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Get data length from ComboBox after removing the first item : ComboBox Data « Components « Flex

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