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
深入理解__doPostBack 客户端调用服务端事件
asp.net(c#)利用构造器链的代码
asp.net Repeater绑定时使用函数
asp.net下linkbutton的前后台使用方法
ASP.NET编程中经常用到的27个函数集
asp.net高效替换大容量字符实现代码
asp.net(c#) ubb处理类
ASP.NET中的跳转 200, 301, 302转向实现代码
C#中的委托和事件学习(续)
asp.net网站安全从小做起与防范小结
asp.net 网页编码自动识别代码
asp.net HttpWebRequest自动识别网页编码
asp.net中调用winrar实现压缩解压缩的代码
dz asp.net论坛中函数--根据Url获得源文件内容
.NET 扩展实现代码
用Jquery访问WebService并返回Json的代码
asp.net(c#)判断远程图片是否存在
asp.net保存远程图片的代码
Asp.Net类库中发送电子邮件的代码
ASP.NET表单验证方法详解

No. « 47 48 49 50 »

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: 141 ::
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>