C#操作Xml

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web.config配置：view plaincopy to clipboardprint?
<appSettings>
<add key="xmlFile" value="xml/class.xml"/>
</appSettings>
<appSettings>
    <add key="xmlFile" value="xml/class.xml"/>
</appSettings> 前台:view plaincopy to clipboardprint?
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="test_Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>C#操作Xml(增删改查)练习</title>
</head>
<body>
    <form id="form1" runat="server">
    <div id="showXml" runat="server">
    显示Xml文档
    </div>
    <div style="background-color:Green;color:Yellow;" mce_style="background-color:Green;color:Yellow;">为html控件绑定服务器控件的两个要点:<br />
    1.onserverclick="serverMethod"这里只写方法名.<br />
    2.后台代码,必须是<br />
    protected void XmlAdd(object sender, EventArgs e){}<br />
    注意两个参数及保护级.
    </div>
    <input id="btnAdd" type="button" value="add" runat="server" onserverclick="XmlAdd" />
    <input id="btnDelete" type="button" value="delete" runat="server" onserverclick="XmlDelete" />
    <input id="btnUpdate" type="button" value="update" runat="server" onserverclick="XmlUpdate" />
    <input id="btnQuery" type="button" value="query" runat="server" onserverclick="XmlQuery" />
    </form>
</body>
</html>
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="test_Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>C#操作Xml(增删改查)练习</title>
</head>
<body>
    <form id="form1" runat="server">
    <div id="showXml" runat="server">
    显示Xml文档
    </div>
    <div style="background-color:Green;color:Yellow;" mce_style="background-color:Green;color:Yellow;">为html控件绑定服务器控件的两个要点:<br />
    1.onserverclick="serverMethod"这里只写方法名.<br />
    2.后台代码,必须是<br />
    protected void XmlAdd(object sender, EventArgs e){}<br />
    注意两个参数及保护级.
    </div>
    <input id="btnAdd" type="button" value="add" runat="server" onserverclick="XmlAdd" />
    <input id="btnDelete" type="button" value="delete" runat="server" onserverclick="XmlDelete" />
    <input id="btnUpdate" type="button" value="update" runat="server" onserverclick="XmlUpdate" />
    <input id="btnQuery" type="button" value="query" runat="server" onserverclick="XmlQuery" />
    </form>
</body>
</html> 后台:view plaincopy to clipboardprint?
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 test_Default : System.Web.UI.Page
{
    string xmlFile = System.Configuration.ConfigurationManager.AppSettings["xmlFile"];
    XmlDocument XmlDoc = new XmlDocument();
    protected void Page_Load(object sender, EventArgs e)
    {
        Bind();
    }
    private void Bind()
    {
        XmlDoc.Load(Server.MapPath("../" + xmlFile));//向上一级
        this.showXml.InnerHtml = System.Web.HttpUtility.HtmlEncode(XmlDoc.InnerXml);
    }
    protected void XmlAdd(object sender, EventArgs e)
    {
        XmlNode objRootNode = XmlDoc.SelectSingleNode("//Root");    //声明XmlNode对象
        XmlElement objChildNode = XmlDoc.CreateElement("Student"); //创建XmlElement对象
        objChildNode.SetAttribute("id", "1");
        objRootNode.AppendChild(objChildNode);
        //
        XmlElement objElement = XmlDoc.CreateElement("Name");//???结点和元素的区别?方法都一样.
        objElement.InnerText = "tree1";
        objChildNode.AppendChild(objElement);
        //保存
        XmlDoc.Save(Server.MapPath("../" + xmlFile));
    }
    protected void XmlDelete(object sender, EventArgs e)
    {
        string Node = "//Root/Student[Name='tree1']";//Xml是严格区分大小写的.
        XmlDoc.SelectSingleNode(Node).ParentNode.RemoveChild(XmlDoc.SelectSingleNode(Node));
        //保存
        XmlDoc.Save(Server.MapPath("../" + xmlFile));
    }
    protected void XmlUpdate(object sender, EventArgs e)
    {
        //XmlDoc.SelectSingleNode("//Root/Student[Name='tree1']/Name").InnerText = "tree2";
        XmlDoc.SelectSingleNode("//Root/Student[Name='tree1']").Attributes["id"].Value = "001";
        //保存
        XmlDoc.Save(Server.MapPath("../" + xmlFile));
    }
    protected void XmlQuery(object sender, EventArgs e)
    {
        XmlNodeList NodeList = XmlDoc.SelectNodes("//Root/Student");//查询全部的student节点
        //循环遍历节点，查询是否存在该节点
        for (int i = 0; i < NodeList.Count; i++)
        {
            Response.Write(NodeList[i].ChildNodes[0].InnerText);
        }

        //查询单个节点,//表示全部匹配的元素./表示以此为根的子元素.javascript下的查询也是一样.
        string XmlPathNode = "//Root/Student[Name='rock']/Photo";
        Response.Write(XmlDoc.SelectSingleNode(XmlPathNode).InnerText);
    }
}
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 test_Default : System.Web.UI.Page
{
    string xmlFile = System.Configuration.ConfigurationManager.AppSettings["xmlFile"];
    XmlDocument XmlDoc = new XmlDocument();
    protected void Page_Load(object sender, EventArgs e)
    {
        Bind();
    }
    private void Bind()
    {
        XmlDoc.Load(Server.MapPath("../" + xmlFile));//向上一级
        this.showXml.InnerHtml = System.Web.HttpUtility.HtmlEncode(XmlDoc.InnerXml);
    }
    protected void XmlAdd(object sender, EventArgs e)
    {
        XmlNode objRootNode = XmlDoc.SelectSingleNode("//Root");    //声明XmlNode对象
        XmlElement objChildNode = XmlDoc.CreateElement("Student"); //创建XmlElement对象
        objChildNode.SetAttribute("id", "1");
        objRootNode.AppendChild(objChildNode);
        //
        XmlElement objElement = XmlDoc.CreateElement("Name");//???结点和元素的区别?方法都一样.
        objElement.InnerText = "tree1";
        objChildNode.AppendChild(objElement);
        //保存
        XmlDoc.Save(Server.MapPath("../" + xmlFile));
    }
    protected void XmlDelete(object sender, EventArgs e)
    {
        string Node = "//Root/Student[Name='tree1']";//Xml是严格区分大小写的.
        XmlDoc.SelectSingleNode(Node).ParentNode.RemoveChild(XmlDoc.SelectSingleNode(Node));
        //保存
        XmlDoc.Save(Server.MapPath("../" + xmlFile));
    }
    protected void XmlUpdate(object sender, EventArgs e)
    {
        //XmlDoc.SelectSingleNode("//Root/Student[Name='tree1']/Name").InnerText = "tree2";
        XmlDoc.SelectSingleNode("//Root/Student[Name='tree1']").Attributes["id"].Value = "001";
        //保存
        XmlDoc.Save(Server.MapPath("../" + xmlFile));
    }
    protected void XmlQuery(object sender, EventArgs e)
    {
        XmlNodeList NodeList = XmlDoc.SelectNodes("//Root/Student");//查询全部的student节点
        //循环遍历节点，查询是否存在该节点
        for (int i = 0; i < NodeList.Count; i++)
        {
            Response.Write(NodeList[i].ChildNodes[0].InnerText);
        }

        //查询单个节点,//表示全部匹配的元素./表示以此为根的子元素.javascript下的查询也是一样.
        string XmlPathNode = "//Root/Student[Name='rock']/Photo";
        Response.Write(XmlDoc.SelectSingleNode(XmlPathNode).InnerText);
    }
} xml文件:view plaincopy to clipboardprint?
<?xml version="1.0" encoding="gb2312"?>
<Root>
<Student Admin="no">
    <Name>rock</Name>
    <NickName>rock1</NickName>
    <Pwd>123</Pwd>
    <Sex>男生</Sex>
    <Birthday>1986-1-1</Birthday>
    <Email>xymac@163.com</Email>
    <QQ>123374355</QQ>
    <Msn>loveplc@live.cn</Msn>
    <Tel>13005129336</Tel>
    <Homepage>http://www.loveplc.cn</Homepage>
    <Address>广州</Address>
    <Work>asp.net菜鸟</Work>
    <Photo>images/rock.gif</Photo>
    <Time>2008-3-18 10:15:29</Time>
</Student>
<Student Admin="yes">
    <Name>tree</Name>
    <NickName>宿舍老大</NickName>
    <Pwd>51aspx</Pwd>
    <Sex>男生</Sex>
    <Birthday>
    </Birthday>
    <Email>support@tree.com</Email>
    <QQ>
    </QQ>
    <Msn>
    </Msn>
    <Tel>
    </Tel>
    <Homepage>
    </Homepage>
    <Address>
    </Address>
    <Work>
    </Work>
    <Photo>
    </Photo>
    <Time>2008-3-26 11:39:57</Time>
</Student>
<Student>
    <Name>tree2</Name>
</Student>
<Student id="001">
    <Name>tree1</Name>
</Student>
</Root>