知识大全用XmlDocument创建XML文档

Posted 2022-07-17 类型

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　　代码如下 using System;using System Collections Generic;using System ComponentModel;using System Data;using System Drawing;using System Text;using System Windows Forms;using System Xml;namespace XMLDOMDemo

　　public partial class Form : Formpublic Form ()InitializeComponent();private void btnLoad_Click(object sender EventArgs e)XmlDocument xmlDoc = new XmlDocument();xmlDoc Load( Books xml );MessageBox Show(xmlDoc InnerXml);//创建文档private void btnCreate_Click(object sender EventArgs e)XmlDocument xmlDoc = new XmlDocument();//建立Xml的定义声明XmlDeclaration dec = xmlDoc CreateXmlDeclaration( GB null);xmlDoc AppendChild(dec);//创建根节点XmlElement root = xmlDoc CreateElement( Books );xmlDoc AppendChild(root);XmlNode book = xmlDoc CreateElement( Book );XmlElement title = xmlDoc CreateElement( Title );title InnerText = SQL Server ;book AppendChild(title);XmlElement isbn = xmlDoc CreateElement( ISBN );isbn InnerText = ;book AppendChild(isbn);XmlElement author = xmlDoc CreateElement( Author );author InnerText = jia ;book AppendChild(author);XmlElement price = xmlDoc CreateElement( Price );price InnerText = ;price SetAttribute( Unit ___FCKpd___ quot;);book AppendChild(price);root AppendChild(book);xmlDoc Save( Books xml );

　　private void btnInsert_Click(object sender EventArgs e)XmlDocument xmlDoc = new XmlDocument();xmlDoc Load( Books xml );XmlNode root = xmlDoc SelectSingleNode( Books );XmlElement book = xmlDoc CreateElement( Book );XmlElement title = xmlDoc CreateElement( Title );title InnerText = XML ;book AppendChild(title);XmlElement isbn = xmlDoc CreateElement( ISBN );isbn InnerText = ;book AppendChild(isbn);XmlElement author = xmlDoc CreateElement( Author );author InnerText = snow ;book AppendChild(author);XmlElement price = xmlDoc CreateElement( Price );price InnerText = ;price SetAttribute( Unit ___FCKpd___ quot;);book AppendChild(price);root AppendChild(book);xmlDoc Save( Books xml );MessageBox Show( 数据已写入！ );

　　private void btnUpdate_Click(object sender EventArgs e)XmlDocument xmlDoc = new XmlDocument();xmlDoc Load( Books xml );// //Book[@Unit=\\ $\\ ] //获取Books节点的所有子节点XmlNodeList nodeList = xmlDoc SelectSingleNode( Books//Book ) ChildNodes;//遍历所有子节点foreach (XmlNode xn in nodeList)//将子节点类型转换为XmlElement类型XmlElement xe = (XmlElement)xn;if (xe Name == Author )xe InnerText = amandag ;if (xe GetAttribute( Unit ) == ___FCKpd___ quot;)xe SetAttribute( Unit ￥ );xmlDoc Save( Books xml );

　　private void btnDelete_Click(object sender EventArgs e)XmlDocument xmlDoc = new XmlDocument();xmlDoc Load( Books xml );XmlNodeList nodeList = xmlDoc SelectSingleNode( Books//Book ) ChildNodes;//遍历所有子节点foreach (XmlNode xn in nodeList)//将子节点类型转换为XmlElement类型XmlElement xe = (XmlElement)xn;if (xe Name == Author )xe RemoveAll();if (xe GetAttribute( Unit ) == ￥ )xe RemoveAttribute( Unit );xmlDoc Save( Books xml );

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知识大全 用XmlDocument创建XML文档

知识大全用XmlDocument创建XML文档