通用的表单印证组件

通用的表单验证组件
一个通用的表单验证组件，可以根据验证类型自行扩展，可以被动验证和主动验证。需要用到方法ParamUtil.setParam(已贴出)
组件代码：

package pizazz.flex4.manager{    import flash.events.Event;    import flash.events.MouseEvent;    import mx.controls.Alert;    import mx.events.ValidationResultEvent;    import mx.validators.EmailValidator;    import mx.validators.NumberValidator;    import mx.validators.StringValidator;    import mx.validators.Validator;    import pizazz.flex4.utility.ParamUtil;    import spark.components.Button;    public class Validators{private var _btn:Button;private var _isClick:Boolean = false;private var _allV:Array;private var _strV:StringValidator;private var _numV:NumberValidator;private var _emailV:EmailValidator;        public function Validators(btn:Button = null){if(btn){_btn = btn;_isClick = true;}_allV = new Array();}        public function setOtherValidator(param:Validator):void{_allV.push(param);        }private function common(param:Validator, item:Object):void{param.source = item["source"];param.property = item["property"];if (_isClick){param.trigger = _btn;param.triggerEvent = MouseEvent.CLICK;}_allV.push(param);}        public function valString2Text(event:Event, isNull:Boolean = false, nullMsg:String = null, minNum:Object = NaN, maxNum:Object = NaN, minMsg:String = null, maxMsg:String = null):void{_strV = new StringValidator();ParamUtil.setParam(_strV, {"required": !isNull,"requiredFieldError": nullMsg,"minLength": minNum,"maxLength": maxNum,"tooShortError": minMsg,"tooLongError": maxMsg});common(_strV, {"source": event.target, "property": "text"});        }public function valNumber2Text(event:Event, isNull:Boolean = false, nullMsg:String = null, minNum:Object = NaN, maxNum:Object = NaN):void{_numV = new NumberValidator();ParamUtil.setParam(_numV, {"required": !isNull,"minValue": minNum,"maxValue": maxNum,"requiredFieldError": nullMsg});common(_numV, {"source": event.target, "property": "text"});}public function valEmail2Text(event:Event, isNull:Boolean = false, nullMsg:String = null):void{_emailV = new EmailValidator()ParamUtil.setParam(_emailV, {"required": !isNull,"requiredFieldError": nullMsg});common(_emailV, {"source": event.target, "property": "text"});}        public function submitValidator(msg:String = ""):Boolean{            var _arr:Array = Validator.validateAll(_allV);            if (_arr.length != 0){                if(msg == ""){msg = "请确认输入的正确性和完整性";}Alert.show(msg);                return false;            }            return true;        }    }}

<?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"    xmlns:component="pizazz.flex4.component.*"   minWidth="955" minHeight="600"><s:layout><s:VerticalLayout /></s:layout><fx:Script><![CDATA[import mx.controls.Alert;import pizazz.flex4.manager.Validators;private const val:Validators = new Validators();private function submit():void{if(val.submitValidator()){Alert.show("提交成功");}}]]></fx:Script><mx:Form width="320" height="240"><s:HGroup width="100%"><mx:FormHeading label="表单" width="100%" /><s:Button label="提交" click="submit()" /></s:HGroup><mx:FormItem width="100%" label="名称" required="true"><s:TextInput width="100%" creationComplete="val.valString2Text(event, false, null, 1, 5)" /></mx:FormItem><mx:FormItem width="100%" label="年龄"><s:TextInput width="100%" creationComplete="val.valNumber2Text(event, true)" /></mx:FormItem><mx:FormItem width="100%" label="E-mail" required="true"><s:TextInput width="100%" creationComplete="val.valEmail2Text(event)" /></mx:FormItem></mx:Form></s:Application>