flex_内置验证器集合示例；

<?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="1024" minHeight="768" pageTitle="TheStudioOfCenyebao"> ?? ?<fx:Script> ?? ??? ?<![CDATA[ ?? ??? ??? ?import mx.events.ValidationResultEvent; ?? ??? ??? ?import mx.validators.RegExpValidationResult; ?? ??? ??? ? ?? ??? ??? ?protected function rgvalidator_validHandler(event:ValidationResultEvent):void ?? ??? ??? ?{ ?? ??? ??? ??? ?var theResult:RegExpValidationResult; ?? ??? ??? ??? ?for(var i:int = 0; i<event.results.length; i++) { ?? ??? ??? ??? ??? ?theResult = event.results[i]; ?? ??? ??? ??? ??? ?trace("=1>Found a match string at Index:" + theResult.matchedIndex+"n=2 >On the characters" + ?? ??? ??? ??? ??? ??? ?"of: "+theResult.matchedString); ?? ??? ??? ??? ?} ?? ??? ??? ?} ?? ??? ??? ? ?? ??? ?]]> ?? ?</fx:Script> ?? ?<fx:Declarations> ?? ??? ?<!-- 非可视元素 --> ?? ??? ?<mx:Validator source="{username}" property="text" required="true" requiredFieldError="请输入您的用户名！"/> ?? ??? ? ?? ??? ?<mx:StringValidator source="{pwdStr}" property="text" required="false" minLength="3" tooShortError="不能少于3个字节！" ?? ??? ??? ??? ??? ??? ??? ?maxLength="8" tooLongError="不能多于8个字节！" trigger="{submitBtn}" triggerEvent="click"/> ?? ??? ? ?? ??? ?<mx:NumberValidator source="{age}" property="text" allowNegative="false" negativeError="不允许为负数！" ?? ??? ??? ??? ??? ??? ??? ?minValue="5" maxValue="120" domain="int"/> ?? ??? ? ?? ??? ?<!--mx:DateValidator source="{birthday}" property="text" inputFormat="mm/dd/yyyy" allowedFormatChars="/"/--> ?? ??? ?<mx:DateValidator source="{birthday}" property="text" inputFormat="yyyy-mm-dd" allowedFormatChars="-"/> ?? ??? ?<mx:DateValidator yearSource="{yeartxt}" yearProperty="text" monthSource="{monthfield}" monthProperty="value" ?? ??? ??? ??? ??? ??? ?? daySource="{dayfield}" dayProperty="value" trigger="{dateBtn}" triggerEvent="click"/> ?? ??? ? ?? ??? ?<mx:EmailValidator source="{email}" property="text" invalidCharError="存在无效字符！"/> ?? ??? ? ?? ??? ?<mx:CreditCardValidator cardNumberSource="{cardNumber}" cardNumberProperty="text" ?? ??? ??? ??? ??? ??? ??? ??? ?cardTypeSource="{cardType}" cardTypeProperty="selectedItem" ?? ??? ??? ??? ??? ??? ??? ??? ?trigger="{cardBtn}" triggerEvent="click"/> ?? ??? ? ?? ??? ?<mx:CurrencyValidator source="{assets}" property="text" allowNegative="false" negativeError="不允许为负！" ?? ??? ??? ??? ??? ??? ??? ?? precision="2" precisionError="只能有两位小数！"/> ?? ??? ? ?? ??? ?<mx:PhoneNumberValidator source="{phoneNum}" property="text"/> ?? ??? ? ?? ??? ?<mx:RegExpValidator source="{personId}" property="text" flags="gmi" ?? ??? ??? ??? ??? ??? ??? ?expression="^[0-9A-Z]{18}$" noMatchError="格式不匹配！"/> ?? ??? ? ?? ??? ?<mx:RegExpValidator id="rgvalidator" source="{test}" property="text" expression="m[ai]n" flags="gmi" ?? ??? ??? ??? ??? ??? ??? ?valid="rgvalidator_validHandler(event)"?? ?noMatchError="应该包含m[ai]n格式字符串！" ?? ??? ??? ??? ??? ??? ??? ?trigger="{testBtn}"?? ?triggerEvent="click"/> ?? ??? ? ?? ?</fx:Declarations> ?? ? ?? ?<s:layout> ?? ??? ?<s:VerticalLayout gap="20" paddingLeft="20" paddingTop="20"/> ?? ?</s:layout> ?? ? ?? ?<!--view--> ?? ?<s:HGroup gap="20"> ?? ??? ?<s:VGroup> ?? ??? ??? ?<s:Label text="Validator" fontWeight="bold" fontSize="18"/> ?? ??? ??? ?<s:Label text="用户名：" fontWeight="bold" fontSize="16"/> ?? ??? ??? ?<s:TextInput id="username"/> ?? ??? ?</s:VGroup> ?? ??? ? ?? ??? ?<s:VGroup> ?? ??? ??? ?<s:Label text="StringValidator" fontWeight="bold" fontSize="18"/> ?? ??? ??? ?<s:Label text="登录密码：" fontWeight="bold" fontSize="16"/> ?? ??? ??? ?<s:TextInput id="pwdStr"/> ?? ??? ??? ?<s:Button label="验证" id="submitBtn"/> ?? ??? ?</s:VGroup> ?? ??? ? ?? ??? ?<s:VGroup> ?? ??? ??? ?<s:Label text="NumberValidator" fontWeight="bold" fontSize="18"/> ?? ??? ??? ?<s:Label text="年龄：" fontWeight="bold" fontSize="16"/> ?? ??? ??? ?<s:TextInput id="age"/> ?? ??? ?</s:VGroup> ?? ??? ? ?? ??? ?<s:VGroup> ?? ??? ??? ?<s:Label text="DateValidator" fontWeight="bold" fontSize="18"/> ?? ??? ??? ?<s:Label text="出生日期：" fontWeight="bold" fontSize="16"/> ?? ??? ??? ?<s:TextInput id="birthday"/> ?? ??? ??? ?<s:HGroup width="100%"> ?? ??? ??? ??? ?<s:TextInput id="yeartxt" width="60"/><s:Label text="年" fontWeight="bold" fontSize="16"/> ?? ??? ??? ??? ?<s:NumericStepper id="monthfield" maximum="12"/><s:Label text="月" fontWeight="bold" fontSize="16"/> ?? ??? ??? ??? ?<s:NumericStepper id="dayfield" maximum="31"/><s:Label text="日" fontWeight="bold" fontSize="16"/> ?? ??? ??? ??? ?<s:Button label="日期验证" id="dateBtn"/> ?? ??? ??? ?</s:HGroup> ?? ??? ?</s:VGroup> ?? ??? ? ?? ??? ?<s:VGroup> ?? ??? ??? ?<s:Label text="EmailValidator" fontWeight="bold" fontSize="18"/> ?? ??? ??? ?<s:Label text="邮箱地址：" fontWeight="bold" fontSize="16"/> ?? ??? ??? ?<s:TextInput id="email"/> ?? ??? ?</s:VGroup> ?? ?</s:HGroup> ?? ? ?? ?<s:HGroup gap="20"> ?? ??? ?<s:VGroup> ?? ??? ??? ?<s:Label text="CreditCardValidator" fontWeight="bold" fontSize="18"/> ?? ??? ??? ?<s:DropDownList id="cardType" width="150" prompt="请选择信用卡类型。。。"> ?? ??? ??? ??? ?<mx:ArrayCollection> ?? ??? ??? ??? ??? ?<fx:String>American Express</fx:String> ?? ??? ??? ??? ??? ?<fx:String>Visa</fx:String> ?? ??? ??? ??? ??? ?<fx:String>Diners Club</fx:String> ?? ??? ??? ??? ??? ?<fx:String>Discover</fx:String> ?? ??? ??? ??? ??? ?<fx:String>MasterCard</fx:String> ?? ??? ??? ??? ?</mx:ArrayCollection> ?? ??? ??? ?</s:DropDownList> ?? ??? ??? ?<s:Label text="卡号：" fontWeight="bold" fontSize="16"/> ?? ??? ??? ?<s:TextInput id="cardNumber" width="150"/> ?? ??? ??? ?<s:Button id="cardBtn" label="信用卡验证"/> ?? ??? ?</s:VGroup> ?? ??? ? ?? ??? ?<s:VGroup> ?? ??? ??? ?<s:Label text="CurrencyValidator" fontWeight="bold" fontSize="18"/> ?? ??? ??? ?<s:Label text="资产：" fontWeight="bold" fontSize="16"/> ?? ??? ??? ?<s:TextInput id="assets"/> ?? ??? ?</s:VGroup> ?? ??? ? ?? ??? ?<s:VGroup> ?? ??? ??? ?<s:Label text="PhoneNumberValidator" fontWeight="bold" fontSize="18"/> ?? ??? ??? ?<s:Label text="手机号码："/> ?? ??? ??? ?<s:TextInput id="phoneNum"/> ?? ??? ?</s:VGroup> ?? ??? ? ?? ??? ?<s:VGroup> ?? ??? ??? ?<s:Label text="RegExpValidator(1)" fontWeight="bold" fontSize="18"/> ?? ??? ??? ?<s:Label text="身份证号："/> ?? ??? ??? ?<s:TextInput id="personId" width="150"/> ?? ??? ?</s:VGroup> ?? ??? ? ?? ??? ?<s:VGroup> ?? ??? ??? ?<s:Label text="RegExpValidator(2)" fontWeight="bold" fontSize="18"/> ?? ??? ??? ?<s:Label text="所有匹配："/> ?? ??? ??? ?<s:TextInput id="test" width="150" text="many many people"/> ?? ??? ??? ?<s:Button id="testBtn" label="检测"/> ?? ??? ?</s:VGroup> ?? ?</s:HGroup> ?? ? </s:Application>