I have an xml file named "books.xml" provided in the link "http://msdn.microsoft.com/en-us/library/windows/desktop/ms762271(v=vs.85).aspx". What my requirement was to disaplay only the <title> from xml information as nodes in tree view. But when i did the following coding its displaying all the values as nodes like "catalog" as rootnode, book as parent node for all then author,title,genre etc as nodes but i want only root node catalogue and title as nodes not even book. Can any body guide me what modification i need to do in the exisitng logic for displaying title as nodes

OpenFileDialog dlg = new OpenFileDialog();
        dlg.Title = "Open XML document";
        dlg.Filter = "XML Files (*.xml)|*.xml";
        dlg.FileName = Application.StartupPath + "\\..\\..\\Sample.xml";
        if (dlg.ShowDialog() == DialogResult.OK)
        {
            try
            {
                //Just a good practice -- change the cursor to a 
                //wait cursor while the nodes populate
                this.Cursor = Cursors.WaitCursor;
                //First, we'll load the Xml document
                XmlDocument xDoc = new XmlDocument();
                xDoc.Load(dlg.FileName);
                //Now, clear out the treeview, 
                //and add the first (root) node
                treeView1.Nodes.Clear();
                treeView1.Nodes.Add(new
                  TreeNode(xDoc.DocumentElement.Name));
                TreeNode tNode = new TreeNode();
                tNode = (TreeNode)treeView1.Nodes[0];
                //We make a call to addTreeNode, 
                //where we'll add all of our nodes
                addTreeNode(xDoc.DocumentElement, tNode);
                //Expand the treeview to show all nodes
                treeView1.ExpandAll();
            }
            catch (XmlException xExc)
            //Exception is thrown is there is an error in the Xml
            {
                MessageBox.Show(xExc.Message);
            }
            catch (Exception ex) //General exception
            {
                MessageBox.Show(ex.Message);
            }
            finally
            {
                this.Cursor = Cursors.Default; //Change the cursor back
            }
        }}
        //This function is called recursively until all nodes are loaded
    private void addTreeNode(XmlNode xmlNode, TreeNode treeNode)
    {
        XmlNode xNode;
        TreeNode tNode;
        XmlNodeList xNodeList;
        if (xmlNode.HasChildNodes) //The current node has children
        {
            xNodeList = xmlNode.ChildNodes;
            for (int x = 0; x <= xNodeList.Count - 1; x++)
            //Loop through the child nodes
            {
                xNode = xmlNode.ChildNodes[x];
                treeNode.Nodes.Add(new TreeNode(xNode.Name));
                tNode = treeNode.Nodes[x];
                addTreeNode(xNode, tNode);
            }
        }
        else //No children, so add the outer xml (trimming off whitespace)
            treeNode.Text = xmlNode.OuterXml.Trim();
    }