Populating ComboBox with CFC web service return type query

Question

I am just now learning Flex and am attempting my first app (I have been a CFer for years).
Anyway, I am attempting to build an AIR app in Flex that simply has a login with a form to submit information into a database.
Things are going ok, except I am stumped at something that I think should be simple...populating a combo box. I have a CFC (I am using CFCs as a web service to drive the app) that contains a method that simply returns a query. I want to use the results to populate the combo box display and value. I created the combo box and then dragged the method to the box to have FB create the code. It populates the list but with just [object Object]. This is a piece of cake in CF but I am not stumbling across the correct syntax in Flex. Any pointers would be appreciated.
Here is my current code.
<?xml version="1.0" encoding="utf-8"?>
<s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009"
                       xmlns:s="library://ns.adobe.com/flex/spark"
                       xmlns:mx="library://ns.adobe.com/flex/mx"
                       xmlns:users="services.users.*"
                       currentState="login"
                       xmlns:vinlookup="services.vinlookup.*"
                       xmlns:inventory="services.inventory.*"
                       creationComplete="init()">
    <fx:Script>
        <![CDATA[
            import mx.collections.ArrayCollection;
            import mx.controls.Alert;
            import mx.events.FlexEvent;
            import mx.rpc.events.FaultEvent;
            import mx.rpc.events.ResultEvent;
            import mx.utils.ObjectUtil;
            /*Login Code----------------------------------*/
            private var loginrs:Object;
            //Failed to connect to the wsdl service
            private function GeneralFailed_Handler(e:FaultEvent):void
                Alert.show(e.fault.faultString, "Error connecting to the service");
            //Login Handler
            protected function submitBtn_clickHandler(event:MouseEvent):void
                loginUserResult.token = users.loginUser(userName.text, password.text);
            //Result Handler for Account Authentication
            private function loginUserResult_resultHandler(e:ResultEvent):void
                //check the result
                //Alert.show(ObjectUtil.toString(e.result),"Login Results")
                loginrs = new Object();
                loginrs = e.result;
                if(loginrs['loggedin'] == 'Y')
                    currentState = 'insertInventory';
                }else{
                    Alert.show("Try Again Please.");
            /*VIN Lookup Code----------------------------------*/
            private var vinrs:Object;
            //VIN Lookup Handler
            protected function VINSubmitbtn_clickHandler(event:MouseEvent):void
                getvinInfoResult.token = vinlookup.getvinInfo(vin.text, "BASIC");
            //Result Handler for Account Authentication
            private function vinLookupResult_resultHandler(e:ResultEvent):void
                //check the result
                Alert.show(ObjectUtil.toString(e.result),"Lookup Results")
                vinrs = new Object();
                vinrs = e.result;
                if(vinrs == null)
                    Alert.show("The VIN did not decode. Try Again Please.");
                else
                    bodyStyle.text = vinrs['VARBODYSTYLE'];
                    //Alert.show("Yes!");
            /*Item Type Combo Box Code----------------------------------*/   
            protected function comboBox_creationCompleteHandler(event:FlexEvent):void
                getItemtypeResult.token = inventory.getItemtype();
        ]]>
    </fx:Script>
    <s:states>
        <s:State name="login"/>
        <s:State name="insertInventory"/>
    </s:states>
    <fx:Declarations>
        <s:CallResponder id="loginUserResult" result="loginUserResult_resultHandler(event)"/>
        <users:Users id="users" fault="Alert.show(event.fault.faultString + '\n' + event.fault.faultDetail)" showBusyCursor="true"/>
        <s:CallResponder id="getvinInfoResult" result="vinLookupResult_resultHandler(event)"/>
        <vinlookup:Vinlookup id="vinlookup" fault="Alert.show(event.fault.faultString + '\n' + event.fault.faultDetail)" showBusyCursor="true"/>
        <inventory:Inventory id="inventory" fault="Alert.show(event.fault.faultString + '\n' + event.fault.faultDetail)" showBusyCursor="true"/>
        <s:CallResponder id="getItemtypeResult"/>
        <!-- Place non-visual elements (e.g., services, value objects) here -->
    </fx:Declarations>
    <s:Panel width="250" height="150" title="Login" horizontalCenter="0" verticalCenter="0" includeIn="login">
        <mx:Form width="100%" height="100%" horizontalCenter="0" verticalCenter="0">
            <mx:FormItem label="User Name">
                <s:TextInput id="userName"/>
            </mx:FormItem>
            <mx:FormItem label="Password">
                <s:TextInput id="password" displayAsPassword="true"/>
            </mx:FormItem>
            <mx:FormItem>
                <s:Button label="Login" id="submitBtn" click="submitBtn_clickHandler(event)"/>
            </mx:FormItem>
        </mx:Form>
    </s:Panel>
    <s:Panel includeIn="insertInventory" width="400" height="400" title="Insert Inventory" horizontalCenter="0" verticalCenter="0">
        <mx:Form width="100%" height="100%" horizontalCenter="0" verticalCenter="0">
            <mx:FormItem label="VIN">
                <s:TextInput id="vin"/>
            </mx:FormItem>
            <mx:FormItem id="vinSubmitbtn">
                <s:Button label="Decode VIN" id="VINSubmitbtn" click="VINSubmitbtn_clickHandler(event)"/>
            </mx:FormItem>
            <mx:FormItem label="Body Style">
                <s:TextInput id="bodyStyle"/>
            </mx:FormItem>
            <mx:FormItem label="Item Type">
                <s:ComboBox id="comboBox" creationComplete="comboBox_creationCompleteHandler(event)">
                    <s:AsyncListView list="{getItemtypeResult.lastResult}"/>
                </s:ComboBox>
            </mx:FormItem>
        </mx:Form>
    </s:Panel>
</s:WindowedApplication>

Answer 1

I figured it out with the help of the AS help. I switched to using a DropDownList and the first example in the help.