Something I've been pondering.

Living over in System.Xml.XPath is an extension method to XNode (from LINQ to XML) called CreateNavigator.

So, given something like an XElement;

XElement x = new XElement("foo");

I can go ahead and get an XPathNavigator from it;

    XElement x = new XElement("foo");
    XPathNavigator nav = x.CreateNavigator();

So, how come we do this with an extension method rather than have XNode implement the existing IXPathNavigable? I found that a bit odd and would be interested to know if someone has an explanation.

It's not particularly hard to write a ToNavigable() extension with perhaps something like this (scribbled very quickly);

  public static class Ext
  {
    private class Navigable : IXPathNavigable
    {
      private XNode node;

      public Navigable(XNode n)
      {
        node = n;
      }
      public XPathNavigator CreateNavigator()
      {
        return (node.CreateNavigator());
      }
    }
    public static IXPathNavigable ToNavigable(this XNode n)
    {
      return (new Navigable(n));
    }
  }