Flex TextInput 动态推断输入内容

<?

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:Script>

		<![CDATA[

			import spark.events.TextOperationEvent;

			[Bindable]

			private var errorStr:String = "";

			protected function numInput_changeHandler(event:TextOperationEvent):void

			{

				var exp:RegExp= /[\d，,]/g;

				var inputText:String = numInput.text+'';

				if(inputText==''){

					return;

				}

				if(inputText.match(/[。,]$/)){

					inputText = inputText.substring(0,inputText.length-1);

				}

				var temp:String = inputText.replace(exp,'');

				var isRight:Boolean = true;

				if(temp==''){

					var arr:Array = inputText.split(/[，,]/);

					for(var i:int =0;i<arr.length;i++){

						var oneNum:String = arr[i];

						if(oneNum==null || (oneNum+'')== ''){

							isRight = false;

						}

					}

				}else{

					isRight = false;

				}

				if(isRight){

					numInput.setStyle('borderColor','black');

					alarmLabel.visible = false;

				}else{

					numInput.setStyle('borderColor','0xFF0000');

					alarmLabel.visible = true;

				}

			}

		]]>

	</fx:Script>

	<fx:Declarations>

	</fx:Declarations>

	<s:HGroup width="100%" height="30" horizontalAlign="left" paddingLeft="5"

			  paddingRight="5" verticalAlign="middle">

		<s:Label width="60" text="号码：" textAlign="right"/>

		<s:TextInput id="numInput" width="200" change="numInput_changeHandler(event)"

					 errorString="{errorStr}"/>

		<s:Spacer width="16"/>

		<s:Label id="alarmLabel" visible="false" color="0xFF0000" text="仅仅同意输入数字以“，”隔开"/>

	</s:HGroup>

</s:Application>