Question

Say I have a phone-number validator in flex and I have two TextInput controls for phone numbers. I don’t want to have two separate validator controls defined that have essentially the same attributes… but each validator has only one ‘source’ attribute. How can I use the same validator on multiple control? (or any equivalent solution)

Answer 1

Not inline, but you can perform the validation programmatically, say, on submission of a form, or when a user tabs out of a control, etc. Here’s an example using a single PhoneNumberValidator to validate two form fields; the validation happens when the Submit button gets clicked:

<mx:Script>     <![CDATA[          private function validatePhoneNumber(txt:TextInput):void         {             v.listener = txt;             v.validate(txt.text);         }          private function btn_click():void         {             validatePhoneNumber(p1);             validatePhoneNumber(p2);         }      ]]> </mx:Script>  <mx:PhoneNumberValidator id='v' allowedFormatChars='()- .+' property='text' requiredFieldError='Required.' wrongLengthError='Invalid length.' invalidCharError='Invalid character.' />  <mx:Form>     <mx:FormItem label='Phone Number 1'>         <mx:TextInput id='p1' />         </mx:FormItem>     <mx:FormItem label='Phone Number 2'>         <mx:TextInput id='p2' />         </mx:FormItem>     <mx:FormItem>         <mx:Button id='btn' label='Submit' click='btn_click()' />     </mx:FormItem> </mx:Form> 

Hope it helps!