在TextInput及TextArea控件上使用Validator和Formatter
<?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:Declarations><!-- 将非可视元素（例如服务、值对象）放在此处 --><mx:DateFormatter id="dateFormatter" formatString="day: DD, month:MM, year:YYYY"/><mx:DateValidator id="dateVal" source="{inputDate}" property="text" inputFormat="mm/dd/yyyy"/><mx:PhoneNumberValidator id="phoneValidator" property="text" source="{inputPhone}"/><mx:PhoneFormatter id="phoneFormatter" formatString="(###) ###-####" validPatternChars="#-()"/><mx:CurrencyFormatter id="currencyFormatter" currencySymbol="$" thousandsSeparatorFrom="." decimalSeparatorFrom=","/><mx:NumberValidator id="numValidator" source="{inputCurrency}" property="text" /></fx:Declarations><fx:Script><![CDATA[import mx.events.ValidationResultEvent;private var vResult:ValidationResultEvent;//负责验证及格式化的事件处理器private function dateFormat():void{vResult = dateVal.validate();if(vResult.type==ValidationResultEvent.VALID){inputDate.text = dateFormatter.format(inputDate.text);}else{inputDate.text="";}}private function phoneFormat():void{vResult = phoneValidator.validate();if(vResult.type==ValidationResultEvent.VALID){inputPhone.text = phoneFormatter.format(inputPhone.text);}else{inputPhone.text="";}}private function currencyFormat():void{vResult = numValidator.validate();if(vResult.type==ValidationResultEvent.VALID){inputCurrency.text = currencyFormatter.format(inputCurrency.text);}else{inputCurrency.text="";}}]]></fx:Script><mx:Form><mx:FormItem label="Currency Input"><s:TextInput id="inputCurrency" focusOut="currencyFormat()" width="300" /></mx:FormItem><mx:FormItem label="Phone Number Input"><s:TextInput id="inputPhone" focusOut="phoneFormat()" width="300"/></mx:FormItem><mx:FormItem label="Date Input"><s:TextInput id="inputDate" focusOut="dateFormat()" width="300"/></mx:FormItem></mx:Form></s:Application>