title: How to assign xml content to a string explicitly
body: <p>Do you know how I can explicitlyt assign xml content to a string ? 
  Example :</p>
  
  <pre><code>string myXml = "
  &lt;?xml version="1.0"?&gt;
  &lt;note&gt;
  &lt;to&gt;Tove&lt;/to&gt;
  &lt;from&gt;Jani&lt;/from&gt;
  &lt;heading&gt;Reminder&lt;/heading&gt;
  &lt;body&gt;Don't forget me this weekend!&lt;/body&gt;
  &lt;/note&gt;
  "
  </code></pre>
  
  <p>I want to do this but with a quite bigger file.I need it because I want to use it in my Unit testing but it shows lots of errors when I am trying to paste the content between the quotes.</p>