更新XML文件要经历几个步骤

2007-10-02 23:47 稻草人阅读(722) 评论(1) 编辑收藏举报

(1) 先创建一个XML文档对象,同时加载对应的XML文件
(2) 获取XML文档对象的根节点
(3) 创建一个元素,同时给该无素初始化
(4) 在对应的位置放置该元素
(5) 创建步骤4)中元素对应的子元素,同时在4)中的元素下面添加对应的无素(即给节点赋给节点值)
(6)记住将修改完毕的XML文件存盘,这时候需要调用XMLDocument对象的Save方法

using System;

using System.Data;

using System.Configuration;

using System.Collections;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

using System.Xml;

public partial class XML_Load : System.Web.UI.Page

{

private void SaveXMLData_nodemode()

{

try

{

XmlDocument xdoc = new XmlDocument();

xdoc.Load(Server.MapPath("phonebook.xml"));

XmlElement parentNode = xdoc.CreateElement("menber");

xdoc.DocumentElement.PrependChild(parentNode);

XmlElement nameNode = xdoc.CreateElement("name");

XmlElement telphoneNode = xdoc.CreateElement("telphone");

XmlElement qqNode = xdoc.CreateElement("QQ");

XmlElement msnNode = xdoc.CreateElement("MSN");

XmlElement cellphoneNode = xdoc.CreateElement("cellphone");

XmlElement workNode=xdoc.CreateElement ("work");

XmlElement addressNode = xdoc.CreateElement("address");

XmlElement emailNode = xdoc.CreateElement("email");

XmlText cellphoneText=xdoc.CreateTextNode(Request.Form.Get("cellphoneNode"));

XmlText nametext = xdoc.CreateTextNode(Request.Form.Get("name"));

XmlText telphonetext = xdoc.CreateTextNode(Request.Form.Get("telphone"));

XmlText QQText = xdoc.CreateTextNode(Request.Form.Get("QQ"));

XmlText msnNodeText = xdoc.CreateTextNode(Request.Form.Get("cellphone"));

XmlText workNodeText = xdoc.CreateTextNode(Request.Form.Get("work"));

XmlText addressNodeText = xdoc.CreateTextNode(Request.Form.Get("address"));

XmlText emailNodeText = xdoc.CreateTextNode(Request.Form.Get("email"));

parentNode.AppendChild(nameNode);

parentNode.AppendChild(telphoneNode);

parentNode.AppendChild(qqNode);

parentNode.AppendChild(msnNode);

parentNode.AppendChild(cellphoneNode);

parentNode.AppendChild(workNode);

parentNode.AppendChild(addressNode);

parentNode.AppendChild(emailNode);

nameNode.AppendChild(nametext);

telphoneNode.AppendChild(telphonetext);

qqNode.AppendChild(QQText);

msnNode.AppendChild(msnNodeText);

cellphoneNode.AppendChild(cellphoneText);

workNode.AppendChild(workNodeText);

addressNode.AppendChild(addressNodeText);

emailNode.AppendChild(emailNodeText);

xdoc.Save(Server.MapPath("phonebook.xml"));

}

catch(Exception ce)

{

Console.WriteLine(ce.Message);

}

protected void Page_Load(object sender, EventArgs e)

{

}

protected void Button1_Click(object sender, EventArgs e)

{

SaveXMLData_nodemode();

Exception ce = new Exception();

Label1.Text = ce.Message;

}