asp.net(C#) Xml操作(增刪改查)練習

最後更新：2018-12-08 來源：互聯網

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web.config配置：複製代碼代碼如下:<appSettings>
<add key="xmlFile" value="xml/class.xml"/>
</appSettings>
<appSettings>
<add key="xmlFile" value="xml/class.xml"/>
</appSettings>

前台: 複製代碼代碼如下:<%@ 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(增刪改查)練習</title>
</head>
<body>
<form id="form1" runat="server">
<div id="showXml" runat="server">
顯示Xml文檔
</div>
<div style="background-color:Green;color:Yellow;" style="background-color:Green;color:Yellow;">為html控制項綁定伺服器控制項的兩個要點:<br />
1.onserverclick="serverMethod"這裡唯寫方法名.<br />
2.後台代碼,必須是<br />
protected void XmlAdd(object sender, EventArgs e){}<br />
注意兩個參數及保護級.
</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(增刪改查)練習</title>
</head>
<body>
<form id="form1" runat="server">
<div id="showXml" runat="server">
顯示Xml文檔
</div>
<div style="background-color:Green;color:Yellow;" style="background-color:Green;color:Yellow;">為html控制項綁定伺服器控制項的兩個要點:<br />
1.onserverclick="serverMethod"這裡唯寫方法名.<br />
2.後台代碼,必須是<br />
protected void XmlAdd(object sender, EventArgs e){}<br />
注意兩個參數及保護級.
</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>

後台: 複製代碼代碼如下: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));//向上一級
this.showXml.InnerHtml = System.Web.HttpUtility.HtmlEncode(XmlDoc.InnerXml);
}
protected void XmlAdd(object sender, EventArgs e)
{
XmlNode objRootNode = XmlDoc.SelectSingleNode("//Root"); //聲明XmlNode對象
XmlElement objChildNode = XmlDoc.CreateElement("Student"); //建立XmlElement對象
objChildNode.SetAttribute("id", "1");
objRootNode.AppendChild(objChildNode);
//
XmlElement objElement = XmlDoc.CreateElement("Name");//???結點和元素的區別?方法都一樣.
objElement.InnerText = "tree1";
objChildNode.AppendChild(objElement);
//儲存
XmlDoc.Save(Server.MapPath("../" + xmlFile));
}
protected void XmlDelete(object sender, EventArgs e)
{
string Node = "//Root/Student[Name='tree1']";//Xml是嚴格區分大小寫.
XmlDoc.SelectSingleNode(Node).ParentNode.RemoveChild(XmlDoc.SelectSingleNode(Node));
//儲存
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";
//儲存
XmlDoc.Save(Server.MapPath("../" + xmlFile));
}
protected void XmlQuery(object sender, EventArgs e)
{
XmlNodeList NodeList = XmlDoc.SelectNodes("//Root/Student");//查詢全部的student節點
//迴圈遍曆節點，查詢是否存在該節點
for (int i = 0; i < NodeList.Count; i++)
{
Response.Write(NodeList[i].ChildNodes[0].InnerText);
}
//查詢單個節點,//表示全部匹配的元素./表示以此為根的子項目.javascript下的查詢也是一樣.
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));//向上一級
this.showXml.InnerHtml = System.Web.HttpUtility.HtmlEncode(XmlDoc.InnerXml);
}
protected void XmlAdd(object sender, EventArgs e)
{
XmlNode objRootNode = XmlDoc.SelectSingleNode("//Root"); //聲明XmlNode對象
XmlElement objChildNode = XmlDoc.CreateElement("Student"); //建立XmlElement對象
objChildNode.SetAttribute("id", "1");
objRootNode.AppendChild(objChildNode);
//
XmlElement objElement = XmlDoc.CreateElement("Name");//???結點和元素的區別?方法都一樣.
objElement.InnerText = "tree1";
objChildNode.AppendChild(objElement);
//儲存
XmlDoc.Save(Server.MapPath("../" + xmlFile));
}
protected void XmlDelete(object sender, EventArgs e)
{
string Node = "//Root/Student[Name='tree1']";//Xml是嚴格區分大小寫.
XmlDoc.SelectSingleNode(Node).ParentNode.RemoveChild(XmlDoc.SelectSingleNode(Node));
//儲存
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";
//儲存
XmlDoc.Save(Server.MapPath("../" + xmlFile));
}
protected void XmlQuery(object sender, EventArgs e)
{
XmlNodeList NodeList = XmlDoc.SelectNodes("//Root/Student");//查詢全部的student節點
//迴圈遍曆節點，查詢是否存在該節點
for (int i = 0; i < NodeList.Count; i++)
{
Response.Write(NodeList[i].ChildNodes[0].InnerText);
}
//查詢單個節點,//表示全部匹配的元素./表示以此為根的子項目.javascript下的查詢也是一樣.
string XmlPathNode = "//Root/Student[Name='rock']/Photo";
Response.Write(XmlDoc.SelectSingleNode(XmlPathNode).InnerText);
}
}

xml檔案複製代碼代碼如下:<?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>xymac@163.com</Email>
<QQ>123374355</QQ>
<Msn>loveplc@live.cn</Msn>
<Tel>13005129336</Tel>
<Homepage>http://www.jb51.net</Homepage>
<Address>廣州</Address>
<Work>asp.net菜鳥</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>

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