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flex : @ symbol: what's that ?

what is the @ symbol isgnification is FLEX ?

For instance :
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
<mx:XML id="menus">
<menus>
<menu label="Fichier">
<menu label="Ouvrir" />
<menu label="Sauvegarder" />
<menu label="Fermer" />
<menu type="separator" />
<menu label="Quitter" />
</menu>
<menu label="Edition">
<menu label="Couper" />
<menu label="Copier" />
<menu label="Coller" />
</menu>
</menus>
</mx:XML>

<mx:MenuBar dataProvider="{menus.menu}" labelField="@label" right="10" top="10" left="10"/>

</mx:Application>

LordOfPorts

This section contains its definition: http://livedocs.adobe.com/flex/2/langref/operators.html#attribute_identifier

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julianopolito

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julianopolito

Another example:

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
<mx:XML id="menus">
<menus>
<menu label="Fichier" name="John">
<menu label="Ouvrir" name="Mac" />
<menu label="Sauvegarder" name="Mary" />
<menu label="Fermer" name="Zak"/>
<menu type="separator" />
<menu label="Quitter" name="Peter" />
</menu>
<menu label="Edition" name="Orson">
<menu label="Couper" name="Jack" />
<menu label="Copier" name="Gabriel" />
<menu label="Coller" name="Sam" />
</menu>
</menus>
</mx:XML>

<mx:MenuBar dataProvider="{menus.menu}" labelField="@name" right="10" top="10" left="10"/>

</mx:Application>

In this case instead of menu items named with label, they will be labeled with names. Try it.