Create and invoke a validator programmatically when a user clicks a Button control : Validator « Development « Flex

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3. Validator

Create and invoke a validator programmatically when a user clicks a Button control

        

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    <!-- validators\ValTriggerProg.mxml -->
<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">
    <s:layout>
        <s:VerticalLayout />
    </s:layout>
    <fx:Script> 
         
        // Import ZipCodeValidator. 
        import mx.validators.ZipCodeValidator; 
        private var v:ZipCodeValidator = new ZipCodeValidator(); 
        private function performValidation():void { 
            v.domain = "US or Canada"; 
            // Set the listener property to the component 
            // used to display validation errors. 
            v.listener=myZip; 
            v.validate(myZip.text); 
        } 
      
    </fx:Script>
    <s:TextInput id="myZip" />
    <s:Button label="Submit" click="performValidation();" />
</s:Application>

   
    
    
    
    
    
    
    
  

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