Xml文件如下：

<?xml version="1.0" encoding="utf-8"?> <Advertisements> <Ad> <ImageUrl>001.jpg</ImageUrl> <NavigateUrl>001.aspx</NavigateUrl> <Impressions>10</Impressions> <Keyword>gucas01</Keyword> </Ad> <Ad> <ImageUrl>002.jpg</ImageUrl> <NavigateUrl>002.aspx</NavigateUrl> <Impressions>20</Impressions> <Keyword>gucas02</Keyword> </Ad> <Ad> <ImageUrl>003.jpg</ImageUrl> <NavigateUrl>003.aspx</NavigateUrl> <Impressions>30</Impressions> <Keyword>gucas03</Keyword> </Ad> <Ad> <ImageUrl>004.jpg</ImageUrl> <NavigateUrl>004.aspx</NavigateUrl> <Impressions>40</Impressions> <Keyword>gucas04</Keyword> </Ad> <Ad> <ImageUrl>005.jpg</ImageUrl> <NavigateUrl>005.aspx</NavigateUrl> <Impressions>50</Impressions> <Keyword>gucas05</Keyword> </Ad> <Ad> <ImageUrl>google.gif</ImageUrl> <NavigateUrl>http://"); CreateNode(xmdoc, node, "Impressions", "30"); CreateNode(xmdoc, node, "Keyword", "google"); root.AppendChild(node); } xmdoc.Save(Server.MapPath(file)); Response.Write("写入XML文件XMLFile.xml成功。<br>"); } catch(Exception ex) { Response.Write(ex.Message); } } /// <summary> /// 创建节点 /// </summary> /// <param name="xmldoc"></param> /// <param name="parentnode"></param> /// <param name="name"></param> /// <param name="value"></param> public void CreateNode(XmlDocument xmldoc, XmlNode parentnode, string name, string value) { XmlNode node = xmldoc.CreateNode(XmlNodeType.Element, name, null); node.InnerText = value; parentnode.AppendChild(node); } /// <summary> /// 读取XML文件 /// </summary> /// <param name="file"></param> private void ReadFile(string file) { XmlDocument xmldoc = new XmlDocument(); try { xmldoc.Load(Server.MapPath(file)); XmlNode node = xmldoc.SelectSingleNode("Advertisements"); if (node != null) { TreeNode root = new TreeNode(); root.Text = node.Name; tvXml.Nodes.Add(root); foreach (XmlNode xnode in xmldoc.SelectNodes("Advertisements/Ad")) { TreeNode tnode = new TreeNode(); tnode.Text = Server.HtmlEncode("<" + xnode.Name + ">"); root.ChildNodes.Add(tnode); foreach (XmlNode xcnode in xnode.ChildNodes) { TreeNode tcnode = new TreeNode(); tcnode.Text = Server.HtmlEncode("<" + xcnode.Name + ">" + xcnode.InnerText + "</" + xcnode.Name + ">"); tnode.ChildNodes.Add(tcnode); } TreeNode ttnode = new TreeNode(); ttnode.Text = Server.HtmlEncode("</" + xnode.Name + ""); root.ChildNodes.Add(ttnode); } TreeNode tpnode = new TreeNode(); tpnode.Text = Server.HtmlEncode("</" + node.Name + ">"); tvXml.Nodes.Add(tpnode); } } catch (Exception ex) { Response.Write(ex.Message); } }

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