tourdeflexmodules/src/mx/validators/RegExValidatorExample.mxml

<?xml version="1.0"?> 
<!--
  Licensed to the Apache Software Foundation (ASF) under one or more
      contributor license agreements.  See the NOTICE file distributed with
      this work for additional information regarding copyright ownership.
      The ASF licenses this file to You under the Apache License, Version 2.0
      (the "License"); you may not use this file except in compliance with
      the License.  You may obtain a copy of the License at

          http://www.apache.org/licenses/LICENSE-2.0

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      distributed under the License is distributed on an "AS IS" BASIS,
      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
      See the License for the specific language governing permissions and
      limitations under the License.
  -->

<!-- Simple example to demonstrate the RegExpValidator. -->
<mx:Module xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:mx="library://ns.adobe.com/flex/mx"
				paddingBottom="0" paddingTop="0" paddingLeft="0" paddingRight="0"
				height="100%" width="100%">

	<fx:Script>
		<![CDATA[
			import mx.events.ValidationResultEvent;
			import mx.validators.*;
	
            // Write the results to the 
			private function handleResult(eventObj:ValidationResultEvent):void {
				if (eventObj.type == ValidationResultEvent.VALID)
				{
					// For valid events, the results Array contains
					// RegExpValidationResult objects.
					var xResult:RegExpValidationResult;
					reResults.text="";
					for (var i:uint = 0; i < eventObj.results.length; i++)
					{
						xResult = eventObj.results[i];
						reResults.text=reResults.text + xResult.matchedIndex + " " +
							xResult.matchedString + "\n";
					}
				}
				else
				{
					reResults.text="";			
				}		
			}
		]]>
	</fx:Script>

	<fx:Declarations>
		<mx:RegExpValidator id="regExpV" 
			source="{regex_text}" property="text" 
			flags="g" expression="{regex.text}" 
			valid="handleResult(event)" invalid="handleResult(event)"
			trigger="{myButton}" triggerEvent="click"/>
	</fx:Declarations>
	
   <mx:Panel title="RegExpValidator Example"	
				paddingBottom="10" paddingTop="10" paddingLeft="10" paddingRight="10"
				height="100%" width="100%">
   
        <mx:Text width="100%" text="Instructions:"/>
        <mx:Text width="100%" text="1. Enter text to search. By default, enter  a string containing the letters ABC in sequence followed by any digit."/>
        <mx:Text width="100%" text="2. Enter the regular expression. By default, enter ABC\d."/>
        <mx:Text width="100%" text="3. Click the Button control to trigger the validation."/>
        <mx:Text width="100%" text="4. The results show the index in the text where the matching pattern begins, and the matching pattern. "/>
   
        <mx:Form>
            <mx:FormItem label="Enter text: ">
                <mx:TextInput id="regex_text" text="xxxxABC4xxx" width="100%"/>
            </mx:FormItem>

            <mx:FormItem label="Enter regular expression: ">
                <mx:TextInput id="regex" text="ABC\d" width="100%"/>
            </mx:FormItem>

            <mx:FormItem label="Results: ">
                <mx:TextInput id="reResults" width="100%"/>
            </mx:FormItem>

            <mx:FormItem >
                <mx:Button id="myButton" label="Validate"/>
            </mx:FormItem>
        </mx:Form>
	</mx:Panel>
</mx:Module>