Traverse a XML using Recursive function, find string in XML, filter text in XML Data

using System.Xml;

namespace Murli_ConsoleApplication1
{
    class Program
    {
    	static void Main( string[] args )
    	{
    		// Load xml document.
		#region Load Xml in Document or Dom
        	string strFileName = Server.MapPath("~/RootLinks/Navigation.xml");
        	oXmlDoc = new XmlDocument();
        	try
        	{
        	    oXmlDoc.Load(strFileName);
       	 	}
        	catch (Exception ex)
        	{
            	    //Console.Write("Error: " + ex.Message);
        	}
        	//XmlNode oNode = oXmlDoc.DocumentElement;
        	#endregion 

    		TraverseNodes(oXmlDoc.ChildNodes);
    	}

    	private static void TraverseNodes(XmlNodeList nodes )
    	{
    		foreach( XmlNode node in nodes )
    		{
    			// Do something with the node.
    			TraverseNodes( node.ChildNodes );
    		}
    	}
    }
}

Realtime Example

    public static string GetDynamicFileName(this string fName, XmlNode xml)
    {
        //folder="True" 
        bool IsCMSView = true;
        string FileName = xml.Attributes["filename"].Value;
        string PageId = xml.Attributes["id"].Value;
        string CompleteURL = fName;

        if (xml.Attributes["real"].Value == "0")
        {
            string strFileName = HttpContext.Current.Server.MapPath("~/RootLinks/Navigation.xml");
            XmlDocument oXmlDoc = new XmlDocument();
            try
            {
                oXmlDoc.Load(strFileName);
            }
            catch (Exception ex)
            {
                //lblMessage.Text = "Error: " + ex.Message;
                //Response.Write("Error: " + ex.Message);
            }
            XmlNodeList xx = oXmlDoc.SelectNodes("/nav/page");
            //Or
            //XmlNodeList xx = oXmlDoc.ChildNodes;                    
            TraverseNodes(xx, ref FileName, ref PageId);
        }
   }

 private static void TraverseNodes(XmlNodeList nodes, ref string FileName,ref string PageId)
    {
        foreach (XmlNode node in nodes)
        {
            if (node.Attributes["id"].Value == FileName)
            {
                FileName = node.Attributes["filename"].Value;
                PageId = node.Attributes["id"].Value;
                break;
            }
            // Do something with the node.
            TraverseNodes(node.ChildNodes, ref FileName, ref PageId);
        }
    }