Bind control's data to Model and use model data in another control

          
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="vertical">
  <mx:Model id="myFormData">
    <signin>
      <user>{userTxt.text}</user>
      <pass>{passTxt.text}</pass>
    </signin>
  </mx:Model>

  <mx:Panel title="title">
    <mx:Form>
      <mx:FormHeading label="Sign In" />
      <mx:FormItem label="User ID">
        <mx:TextInput id="userTxt" />
      </mx:FormItem>
      <mx:FormItem label="Password">
        <mx:TextInput displayAsPassword="true" id="passTxt" />
      </mx:FormItem>
      <mx:Button label="Send data" />
    </mx:Form>

    <mx:Label text="UserID: {myFormData.user}, Password :{myFormData.pass}" />

  </mx:Panel>

</mx:Application>

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Bind control's data to Model and use model data in another control : Model « Data Model « Flex

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