用XmlDocument创建XML文档

代码如下using System;

using SystemCollectionsGeneric;

using SystemComponentModel;

using SystemData;

using SystemDrawing;

using SystemText;

using SystemWindowsForms;

using SystemXml;

namespace XMLDOMDemo

{

public partial class Form : Form

{

public Form()

{

InitializeComponent();

}

private void btnLoad_Click(object sender EventArgs e)

{

XmlDocument xmlDoc = new XmlDocument();

xmlDocLoad(Booksxml);

MessageBoxShow(xmlDocInnerXml);

}

//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 = xmlDocCreateXmlDeclaration( GB null);

xmlDocAppendChild(dec);

//创建根节点

XmlElement root = xmlDocCreateElement(Books);

xmlDocAppendChild(root);

XmlNode book = xmlDocCreateElement(Book);

XmlElement title = xmlDocCreateElement(Title);

titleInnerText = SQL Server;

bookAppendChild(title);

XmlElement isbn = xmlDocCreateElement(ISBN);

isbnInnerText = ;

bookAppendChild(isbn);

XmlElement author = xmlDocCreateElement(Author);

authorInnerText = jia;

bookAppendChild(author);

XmlElement price = xmlDocCreateElement(Price);

priceInnerText = ;

priceSetAttribute(Unit ___FCKpd___quot;);

bookAppendChild(price);

rootAppendChild(book);

xmlDocSave(Booksxml);

}

private void btnInsert_Click(object sender EventArgs e)

{

XmlDocument xmlDoc = new XmlDocument();

xmlDocLoad(Booksxml);

XmlNode root = xmlDocSelectSingleNode(Books);

XmlElement book = xmlDocCreateElement(Book);

XmlElement title = xmlDocCreateElement(Title);

titleInnerText = XML;

bookAppendChild(title);

XmlElement isbn = xmlDocCreateElement(ISBN);

isbnInnerText = ;

bookAppendChild(isbn);

XmlElement author = xmlDocCreateElement(Author);

authorInnerText = snow;

bookAppendChild(author);

XmlElement price = xmlDocCreateElement(Price);

priceInnerText = ;

priceSetAttribute(Unit ___FCKpd___quot;);

bookAppendChild(price);

rootAppendChild(book);

xmlDocSave(Booksxml);

MessageBoxShow(数据已写入！);

}

private void btnUpdate_Click(object sender EventArgs e)

{

XmlDocument xmlDoc = new XmlDocument();

xmlDocLoad(Booksxml);

////Book[@Unit=\$\]

//获取Books节点的所有子节点

XmlNodeList nodeList = xmlDocSelectSingleNode(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 (xeName == Author)

{

xeInnerText = amandag;

}

if (xeGetAttribute(Unit) == ___FCKpd___quot;)

{

xeSetAttribute(Unit ￥);

}

}

xmlDocSave(Booksxml);

}

private void btnDelete_Click(object sender EventArgs e)

{

XmlDocument xmlDoc = new XmlDocument();

xmlDocLoad(Booksxml);

XmlNodeList nodeList = xmlDocSelectSingleNode(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 (xeName == Author)

{

xeRemoveAll();

}

if (xeGetAttribute(Unit) == ￥)

{

xeRemoveAttribute(Unit);

}

}

xmlDocSave(Booksxml);

}

}

}