title: C# XNode add a NameSpace
body: <p>I have a xNode made by JSON.</p>
  
  <p>C# code:</p>
  
  <pre><code>Class class = new Class();
  class.ComboBoxChecked = Class.ComboBoxChecked;
  class.RadioButtonChecked = Class.RadioButtonChecked;
  string test = JsonConvert.SerializeObject(class);
  XNode node = JsonConvert.DeserializeXNode(test, "Root");
  </code></pre>
  
  <p>XML:</p>
  
  <pre><code>&lt;Root&gt;
    &lt;RadioButtonChecked&gt;1&lt;/RadioButtonChecked&gt;
    &lt;ComboBoxChecked&gt;5&lt;/ComboBoxChecked&gt;
  &lt;/Root&gt;
  </code></pre>
  
  <p>My goal is to add a Namespace to it. 
  How can i achieve this?</p>