FLex遍历重置表单

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
?<mx:Script>
? <![CDATA[
?? private function resetForm():void
?? {
???? var instanceInfo:XML=describeType(this);//通过反射机制取出当前MXML中的信息???
???? var properties:XMLList =instanceInfo..accessor.(@type=="mx.controls::TextInput")??????
???? for each(var propertyInfo:XML in properties){?????
?????? var propertyName:String?=propertyInfo.@name;//此处取出的为control的id?????
?????? TextInput(this[propertyName]).text="";??
???? }
?? }
? ]]>
?</mx:Script>
?<mx:Panel title="用户注册信息" width="359" height="303" x="24.5" y="37" fontSize="12">
? <mx:Form id="form" width="100%" height="100%" horizontalGap="0">
?? <mx:FormHeading label="用户资料" width="100%"/>
?? <mx:FormItem label="用户名：" width="100%" required="true">
??? <mx:TextInput width="100%" id="user_txt"/>???
?? </mx:FormItem>
?? <mx:FormItem label="密码：" width="100%" required="true">
??? <mx:TextInput width="100%" displayAsPassword="true" id="pass_txt"/>???
?? </mx:FormItem>
?? <mx:FormItem label="性别：" width="100%" direction="horizontal">
??? <mx:RadioButton groupName="isMale" label="男" /> <mx:RadioButton groupName="isMale" label="女" />
?? </mx:FormItem>
?? <mx:FormItem label="邮箱：" width="100%">
??? <mx:TextInput width="100%" id="email_txt"/>???
?? </mx:FormItem>
?? <mx:FormItem label="电话：" width="100%">
??? <mx:TextInput width="100%" id="phone_txt"/>???
?? </mx:FormItem>
?? <mx:FormItem label="出生年月：" width="100%">
??? <mx:TextInput width="100%" id="birth_txt"/>???
?? </mx:FormItem>
? </mx:Form>
? <mx:ControlBar height="32" paddingBottom="0" paddingTop="0" horizontalAlign="center">
?? <mx:Button id="btnSubmit" label="确定"/>
?? <mx:Button id="btnReset" label="重置" click="resetForm();"/><!--flex里没有重置按钮-->
? </mx:ControlBar>
?</mx:Panel>
?
?<mx:StringValidator source="{user_txt}" property="text" minLength="6" maxLength="12" tooShortError="用户名太短了" trigger="{btnSubmit}" triggerEvent="click"/>
?<mx:StringValidator source="{pass_txt}" property="text" minLength="6" maxLength="12" trigger="{btnSubmit}" triggerEvent="click"/>
??? <mx:PhoneNumberValidator source="{phone_txt}" property="text" trigger="{btnSubmit}" triggerEvent="click"/>
??? <mx:DateValidator source="{birth_txt}" property="text" trigger="{btnSubmit}" triggerEvent="click"/>
??? <mx:EmailValidator source="{email_txt}" property="text" trigger="{btnSubmit}" triggerEvent="click"/>
?
</mx:Application>

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