private void btnLoad_Click(object sender, System.EventArgs e)

    {

      XmlTextReader reader = new XmlTextReader(

        Server.MapPath("mycompany.xml"));

      reader.WhitespaceHandling = WhitespaceHandling.None;

      XmlDocument xmlDoc = new XmlDocument();

      //将文件加载到XmlDocument对象中

      xmlDoc.Load(reader);

      //关闭连接

      reader.Close();

      //向listbox中添加代表文档的元素

      lbNodes.Items.Add("XML Document");

      //查找根节点,并将它及它的子节点一同添加到listbox中

      XmlNode xnod = xmlDoc.DocumentElement;

      AddWithChildren(xnod,1);

    }

    private void AddWithChildren(XmlNode xnod, Int32 intLevel)

    {

      //将节点及它的子节点一同添加到listbox中

      //intLevel 控制缩进的深度

      XmlNode xnodWorking;

      String strIndent = new string(' ',2 * intLevel);

      //如果节点有值，读取它的值

      string strValue = (string) xnod.Value;

      if(strValue != null)

      {

        strValue = " : " + strValue;

      }

      //将节点的详细信息添加到ListBox中

      lbNodes.Items.Add(strIndent + xnod.Name + strValue);

      //如果是元素节点，获取它的属性

      if (xnod.NodeType == XmlNodeType.Element)

      {

        XmlNamedNodeMap mapAttributes = xnod.Attributes;

        //将节点属性添加到ListBox中

        foreach(XmlNode xnodAttribute in mapAttributes)

        {

          lbNodes.Items.Add(strIndent + " " + xnodAttribute.Name +

            " : " + xnodAttribute.Value);

        }

        //如果还有子节点，就递归地调用这个程序

        if(xnod.HasChildNodes)

        {

          xnodWorking = xnod.FirstChild;

          while (xnodWorking != null)

          {

            AddWithChildren(xnodWorking, intLevel +1);

            xnodWorking = xnodWorking.NextSibling;

          }

        }

      }

    }

  }