Extracting XPAH from xmlNode instace

Here is a very simple and elegant function to extract the xpath string of a xml node instance:

static string GetXpath(XmlNode node)
    {
        if (node.Name == "#document")
            return String.Empty;
        return GetXpath(node.SelectSingleNode("..")) + "/" +  (node.NodeType == XmlNodeType.Attribute ? "@":String.Empty) + node.Name;
    }

credit: http://stackoverflow.com/questions/241238/how-to-get-xpath-from-an-xmlnode-instance-c-sharp