Succinct LINQ to XML Query
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            by Kent Boogaart
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        Published on 2010-04-21T16:07:55Z
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            2010/04/21
            16:23 UTC
        
        
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Assuming you have the following XML:
<?xml version="1.0" encoding="utf-8"?>
<content>
    <info>
        <media>
            <image>
                <info>
                    <imageType>product</imageType>
                </info>
                <imagedata fileref="http://www.example.com/image1.jpg" />
            </image>
            <image>
                <info>
                    <imageType>manufacturer</imageType>
                </info>
                <imagedata fileref="http://www.example.com/image2.jpg" />
            </image>
        </media>
    </info>
</content>
Using LINQ to XML, what is the most succinct, robust way to obtain a System.Uri for an image of a given type? At the moment I have this:
private static Uri GetImageUri(XElement xml, string imageType)
{
    return (from imageTypeElement in xml.Descendants("imageType")
            where imageTypeElement.Value == imageType && imageTypeElement.Parent != null && imageTypeElement.Parent.Parent != null
            from imageDataElement in imageTypeElement.Parent.Parent.Descendants("imagedata")
            let fileRefAttribute = imageDataElement.Attribute("fileref")
            where fileRefAttribute != null && !string.IsNullOrEmpty(fileRefAttribute.Value)
            select new Uri(fileRefAttribute.Value)).FirstOrDefault();
}
This works, but feels way too complicated. Especially when you consider the XPath equivalent.
Can anyone point out a better way?
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