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  1. PO
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    <p>I tested out this code and everything seemed to work for me. Are you sure you're setting up the subNavConfig variable properly? </p> <p>Here's the client code I used:</p> <pre><code>// Test.mxml &lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" initialize="onInit()" xmlns:ns="comp.*"&gt; &lt;mx:Script&gt; &lt;![CDATA[ import mx.collections.XMLListCollection; [Bindable] public var bookCollection:XMLListCollection; public function onInit():void { var books:XML = &lt;books&gt; &lt;book publisher="Addison-Wesley" name="Design Patterns" /&gt; &lt;book publisher="Addison-Wesley" name="The Pragmatic Programmer" /&gt; &lt;book publisher="Addison-Wesley" name="Test Driven Development" /&gt; &lt;book publisher="Addison-Wesley" name="Refactoring to Patterns" /&gt; &lt;book publisher="O'Reilly Media" name="The Cathedral &amp; the Bazaar" /&gt; &lt;book publisher="O'Reilly Media" name="Unit Test Frameworks" /&gt; &lt;/books&gt;; var booklist:XMLList = books.book; bookCollection = new XMLListCollection(booklist); } ]]&gt; &lt;/mx:Script&gt; &lt;ns:SubNavBar id="fb" menuItems="{bookCollection}"/&gt; &lt;/mx:Application&gt; </code></pre> <p>And here's the output I got:</p> <pre><code>SubNav: config = &lt;book publisher="Addison-Wesley" name="Design Patterns"/&gt; &lt;book publisher="Addison-Wesley" name="The Pragmatic Programmer"/&gt; &lt;book publisher="Addison-Wesley" name="Test Driven Development"/&gt; &lt;book publisher="Addison-Wesley" name="Refactoring to Patterns"/&gt; &lt;book publisher="O'Reilly Media" name="The Cathedral &amp;amp; the Bazaar"/&gt; &lt;book publisher="O'Reilly Media" name="Unit Test Frameworks"/&gt; </code></pre>
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    1. POWhy are my XMLListCollection properties in my custom components always null?
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    1. USWesley Petrowski
    1. USWesley Petrowski
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    1. POWhy are my XMLListCollection properties in my custom components always null?
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    1. COThanks for taking a look at my issue. I setup a new project to test out your code and I'm still getting "SubNav: config = null"; however, I added a DataGrid control to the SubNav component and it renders with the data you specified in the books XML variable. The SubNav component seems to be binding the XMLListCollection, but not in time for the trace() function in the SubNav's init(). Any thoughts?
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      1. USScott Heath
    2. COJust to double check, are you calling onInit() on creationComplete in main.xml?
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      1. USScott Heath
    3. COActually, I am calling onInit() in the initialize event handler. I've updated the answer to include the Application tag. The creationComplete event only fires once a component and all its children have been created, so by that time the init() function in the SubNavBar has already executed. You can find some more info about the order events happen at http://livedocs.adobe.com/flex/3/html/help.html?content=ascomponents_advanced_2.html
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      1. USWesley Petrowski
 

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