title: Detecting xml:space="preserve" attribute with C#
body: <p>I'm parsing Word docx documents and in the text runs <em></em> there are elements similar to the following that occur quite often:</p>
  
  <pre><code>    &lt;w:t xml:space="preserve"&gt;&lt;/w:t&gt;
  </code></pre>
  
  <p>The <em>run</em> variable in the line below is an <em>XElement</em> and I want to be able to get the attribute value of <em>xml:space</em> and I suspect that I need to do something like:</p>
  
  <pre><code>var value = run.Attributes(xml + "space")
  </code></pre>
  
  <p>but I'm don't know what the <em>XNamespace</em> declaration for <em>xml</em> should be. Can someone tell me what the correct namespace declaration is or offer an alternative means of getting the attribute value.</p>