reset按钮组件

什么都不写了，直接贴代码

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute"
	xmlns:local="cn.whitecrystal.util.*">
	<mx:Script>
		<![CDATA[
			
		]]>
	</mx:Script>
	<mx:Form id="register">
		<mx:FormItem label="用户名:">
			<mx:TextInput id="nametext"/>
		</mx:FormItem>
		<mx:FormItem label="昵称:">
			<mx:TextInput id="name_nc"/>
		</mx:FormItem>
		<mx:FormItem label="密码:">
			<mx:TextInput displayAsPassword="true" id="paswod"/>
		</mx:FormItem>
		<mx:FormItem label="邮箱:">
			<mx:TextInput id="email"/>
		</mx:FormItem>
		<mx:FormItem label="身份证号:">
			<mx:TextInput id="pid"/>
		</mx:FormItem>
		<mx:HBox width="100%" horizontalAlign="center">
		<local:ResetButton label="reset" target="{register}"/>
		</mx:HBox>
	</mx:Form>
	

</mx:Application>

 这个是reset按钮组件

package cn.whitecrystal.util
{
	import flash.events.MouseEvent;
	
	import mx.containers.Form;
	import mx.containers.FormItem;
	import mx.controls.Button;

	public class ResetButton extends Button
	{
		private var _target:Object;
		public function ResetButton()
		{
			
			super();
			this.addEventListener(MouseEvent.CLICK,onReset);
		}
		private function onReset(event:MouseEvent):void
		{
			var form:Form=target as Form;
	 		for each (var formItem:Object in form.getChildren() )
			{
				if(formItem is FormItem)
				{
					(formItem as FormItem).getChildren()[0].text="";
				}
			}
		}
		public function set target(value:Object):void
		{
			this._target=value;
		}
		public function get target():Object
		{
			return this._target;
		}
	}
}