using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Xml;
private XmlDocument xmlDoc;
//load xml file
private void LoadXml()
{
xmlDoc=new XmlDocument();
xmlDoc.Load(Server.MapPath("User.xml"));
}
//添加节点
private void AddElement()
{
LoadXml();
XmlNode xmldocSelect=xmlDoc.SelectSingleNode("user");
XmlElement el=xmlDoc.CreateElement("person"); //添加person节点
el.SetAttribute("name","风云"); //添加person节点的属性"name"
el.SetAttribute("sex","女"); //添加person节点的属性 "sex"
el.SetAttribute("age","25"); //添加person节点的属性 "age"
XmlElement xesub1=xmlDoc.CreateElement("pass"); //添加person节点的里的节点
xesub1.InnerText="123"; //设置文本节点
el.AppendChild(xesub1);
XmlElement xesub2=xmlDoc.CreateElement("Address");
xesub2.InnerText="昆明"; //设置文本节点
el.AppendChild(xesub2);
xmldocSelect.AppendChild(el);
xmlDoc.Save(Server.MapPath("user.xml"));
}
//修改节点
private void UpdateElement()
{
LoadXml();
XmlNodeList nodeList=xmlDoc.SelectSingleNode("user").ChildNodes; //获取bookstore节点的所有子节点
foreach(XmlNode xn in nodeList) //遍历所有子节点
{
XmlElement xe=(XmlElement)xn; //将子节点类型转换为XmlElement类型
if(xe.GetAttribute("name")=="风云") //如果name属性值为“风云”
{
xe.SetAttribute("name","发明"); //如果下面有子节点在下走
XmlNodeList nls=xe.ChildNodes;//继续获取xe子节点的所有子节点
foreach(XmlNode xn1 in nls)//遍历
{
XmlElement xe2=(XmlElement)xn1;//转换类型
if(xe2.Name=="pass")//如果找到
{
xe2.InnerText="66666";//则修改
break;
}
}
break;
}
}
xmlDoc.Save(Server.MapPath("user.xml"));//保存
}
//删出节点
private void deleteNode()
{
LoadXml();
XmlNodeList xnl=xmlDoc.SelectSingleNode("user").ChildNodes;
foreach(XmlNode xn in xnl)
{
XmlElement xe=(XmlElement)xn;
if(xe.GetAttribute("name")=="发明")
{
//xe.RemoveAttribute("name");//删除name属性
xe.RemoveAll();//删除该节点的全部内容
break;
}
}
xmlDoc.Save(Server.MapPath("user.xml"));//保存
}
private void showIt()
{
LoadXml();
XmlNode xn=xmlDoc.SelectSingleNode("user");
XmlNodeList xnl=xn.ChildNodes;
foreach(XmlNode xnf in xnl)
{
XmlElement xe=(XmlElement)xnf;
// Console.WriteLine(xe.GetAttribute("name"));//显示属性值
// Console.WriteLine(xe.GetAttribute("sex"));
// // XmlNodeList xnf1=xe.ChildNodes;
// foreach(XmlNode xn2 in xnf1) //
{
// Console.WriteLine(xn2.InnerText);
//显示子节点点文本
// }
}
}
Xml的样式:
<?xml version="1.0" encoding="gb2312"?>
<user>
<person> </person>
<person name="风拉" sex="男" age="25">
<pass>123</pass>
<Address>大明</Address>
</person>
<person name="风云" sex="女" age="25">
<pass>123</pass>
<Address>昆明</Address>
</person>
</user>