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POBuilding an object list with Linq to Xml
 

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    <p>I am trying to extract values from an XML file using linq to create a list of objects. The XML File looks like this.</p> <pre><code>&lt;RootNode&gt; &lt;Node1&gt; &lt;Node2&gt; &lt;results&gt; &lt;work&gt; &lt;title&gt;title1&lt;/title&gt; &lt;author&gt;author&lt;/author&gt; &lt;image_url&gt;image&lt;/image_url&gt; &lt;/work&gt; ... &lt;/RootNode&gt; XDocument results = XDocument.Load("url"); </code></pre> <p>There can be multiple occurrences of these 'work' nodes (and subsequent child nodes) depending on the search. For each occurrence of 'work' I want to extract the title/author/image values to build a simple book object:</p> <pre><code>public class Book { public string Title { get; set; } public string Author { get; set; } public string ImageUrl { get; set; } } </code></pre> <p>Now I can iterate through the xml file and pick out indivual values using something like this:</p> <pre><code>foreach (XElement element in results.Descendants("title")) { string title = element.Value; } </code></pre> <p>but as I want to build a list of books I have been trying various things much like this:</p> <pre><code>List&lt;Book&gt; books = (from book in results.Descendants("work") select new Book { Title = book.Element("title").Value, Author = book.Element("name").Value, ImageUrl = book.Element("image_url").Value, }).ToList&lt;Book&gt;(); </code></pre> <p>However I keep getting a null reference exceptionfor this. Any pointers of where I am going wrong would be greatly appreciated.</p> <p>Kevin.</p> <p><strong>EDIT</strong></p> <p>Hi guys turns out the problem was with the XML file and not the linq statement. Thanks.</p>
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