[flexcoders] ErrorString and borderColor of controls not in sink

[ilikeflex]

Hi

When errorString of the component is any value(ex 'Enter the value') then the 
borderColor of the component changes to 'red'. But when you make the 
errorString="" it does not change the borderColor of the component back for the 
first time.

It change when the control lose focus. 

How can we make the border color to original when using errorString="" for the 
first time even the control does not loose focus.

I have attached sample of the problem.

Any pointers..

<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"; 
                           xmlns:s="library://ns.adobe.com/flex/spark" 
                           xmlns:mx="library://ns.adobe.com/flex/mx" 
minWidth="955" minHeight="600">
        <fx:Script>
                <![CDATA[
                        import mx.utils.StringUtil;
                        protected function 
textarea1_changeHandler(event:Event):void
                        {
                                // TODO Auto-generated method stub
                                if (StringUtil.trim((event.target as 
TextArea).text).length == 0)
                                {
                                        (event.target as TextArea).errorString 
= 'Enter any value';
                                }
                                else
                                {
                                        (event.target as TextArea).errorString 
= "";
                                }
                        }
                ]]>
        </fx:Script>
        
        <fx:Declarations>
                <!-- Place non-visual elements (e.g., services, value objects) 
here -->
        </fx:Declarations>
        <s:layout>
                <s:VerticalLayout/>
        </s:layout>
        
        <mx:TextArea width="100" height="100" errorString="Enter any value" 
                                 change="textarea1_changeHandler(event)" 
                                 />
        <s:Button label="Hello World"/>
</s:Application>

Thanks
ilikeflex