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Data Validation Through ActionScript

<?xml version="1.0"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">     <mx:Script>                  import mx.validators.DateValidator;         private var validator:DateValidator = new DateValidator();         private function doValidation():void         {             validator.allowedFormatChars = "/-";             validator.listener=myDate;             validator.validate(myDate.text);         }            </mx:Script>     <mx:Panel title="Validation through ActionScript" horizontalAlign="center">         <mx:Label text="Enter a date to be validated (mm/dd/yyyy):" />         <mx:TextInput id="myDate" />         <mx:Button label="Do It" click="doValidation();" />     </mx:Panel> </mx:Application>