当前位置: 首页 > 图文教程 > 网络编程 > ASP.NET > asp.net(C#) Xml操作(增删改查)练习

ASP.NET
ASP.NET开发:简化应用程序的开发支持Web标准
asp.net XMLHttpRequest实现用户注册前的验证
asp.net 页面间传值方法小结
asp.net url重写浅谈
asp.net 验证码生成和刷新及验证
C#精髓 GridView72大绝技 学习gridview的朋友必看
实例说明asp.net中的简单角色权限控制
asp.net网站开发包wq.dll打包下载
js与ASP.NET 中文乱码问题
asp.net checkbox 动态绑定id GridView删除提示
asp.net TextBox回车触发事件 图片在img显示
asp.net 脏字典过滤问题 用正则表达式来过滤脏数据
asp.NET 脏字过滤算法
asp.NET 脏字过滤算法 修改版
asp.net sql 数据库处理函数命令
asp.net Javascript 的几种写法与提示
ASP.NET MVC学习笔记
asp.net 中国身份证号码验证代码 非正则
Asp.net中使用Sqlite数据库的方法
asp.net 中文字符串提交乱码的解决方法

No. « 161 162 163 164 »

技术文章搜索

关键字

ASP.NET 中的 asp.net(C#) Xml操作(增删改查)练习

出处:互联网   整理: 软晨网（RuanChen.com）   发布: 2009-09-13   浏览: 310 ::
收藏到网摘: n/a

web.config配置 前后台文件等代码 web.config配置：
复制代码 代码如下:

<appSettings>
<add key="xmlFile" value="xml/class.xml"/>
</appSettings>
<appSettings>
<add key="xmlFile" value="xml/class.xml"/>
</appSettings>

前台:
复制代码 代码如下:

<%@ 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;" 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;" 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:
复制代码 代码如下:

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
复制代码 代码如下:

<?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>[email protected]</Email>
<QQ>123374355</QQ>
<Msn>[email protected]</Msn>
<Tel>13005129336</Tel>
<Homepage>http://www.ruanchen.com</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>[email protected]</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>