Binding control property to a property of another control

            

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
    <mx:TextInput id="helloTextInput" text="Hello, World" />
    <mx:Label text="{ helloTextInput.text }" />
</mx:Application>

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Binding control property to a property of another control : Data Binding « Data Model « Flex

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