Use validator with data binding to validate either the source or destination of the data binding : Data Binding « Data Model « Flex

1. Flex
2. Data Model
3. Data Binding

Use validator with data binding to validate either the source or destination of the data binding

          

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<!-- validators\ValTriggerWithDataBinding.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:Declarations>
        <!-- Define a data model for storing the phone number. -->
        <fx:Model id="userInfo">
            <phoneInfo>
                <phoneNum>{phoneInput.text}</phoneNum>
            </phoneInfo>
        </fx:Model>
        <!-- Define the PhoneNumberValidator. -->
        <mx:PhoneNumberValidator id="pnV" source="{phoneInput}"
            property="text" />
    </fx:Declarations>
    <!-- Define the TextInput control for entering the phone number. -->
    <s:TextInput id="phoneInput" />
    <s:TextInput id="zipCodeInput" />
</s:Application>

   
    
    
    
    
    
    
    
    
    
  

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