tourdeflexmodules/src/spark/other/BidirectionalBinding1Example.mxml

<?xml version="1.0" encoding="utf-8"?>
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<s:Module 
	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:Panel width="100%" height="100%"
			 title="Bidirectional Binding 1"
			 horizontalCenter="0"
			 >
		<s:Label top="10" left="15" verticalAlign="justify" width="200"
					  text="Flex 4 interprets the @ binding syntax differently than Flex 3 in 
that it will now represent a two-way binding. In this example, the text2 TextInput is bound to text1 bidirectionally, 
so any change to the text2 value will also update the text1 value. "/>
			
			<s:VGroup horizontalCenter="15" top="40">
				<s:Label text="Enter Text:"/>
				<s:TextInput id="text1" widthInChars="20" />
				<s:TextInput id="text2" color="0xFF3366" widthInChars="20" text="@{text1.text}"/>
			</s:VGroup>	
		
	</s:Panel>
	
</s:Module>