溫習一下對xml的簡單操作，貼出來收藏

xml文件格式：

?

<?xml?version="1.0"?encoding="utf-8"?>
<students>
??<student>
????<id>4</id>
????<name>肖品4</name>
????<age>21</age>
??</student>
??<student>
????<id>5</id>
????<name>肖品5</name>
????<age>22</age>
??</student>
??<student>
????<id>1</id>
????<name>肖品1</name>
????<age>18</age>
??</student>
??<student>
????<id>2</id>
????<name>肖品2</name>
????<age>19</age>
??</student>
??<student>
????<id>3</id>
????<name>肖品3</name>
????<age>20</age>
??</student>
</students>

?

?

XMLtoDataSet.aspx 這個頁面包含了增刪改查

?

using?System;
using?System.Collections.Generic;
using?System.Linq;
using?System.Web;
using?System.Web.UI;
using?System.Web.UI.WebControls;
using?System.Data;
using?System.Xml;
using?System.IO;

namespace?XMLWEB
{
????public?partial?class?XMLtoDataSet?:?System.Web.UI.Page
????{
????????protected?void?Page_Load(object?sender,?EventArgs?e)
????????{
????????????if?(!IsPostBack)
????????????{
????????????????LoadGridView();
????????????}
????????}

????????private?void?LoadGridView()
????????{
????????????//轉換一個XML文件(本地\網絡均可)為一個DataSet
????????????DataSet?ds?=?new?DataSet();
????????????//ds?=?XMLDataSetConverter.ConvertXMLFileToDataSet(Server.MapPath("xmltodataset.xml"));
????????????//ds?=?XMLDataSetConverter.ConvertXMLFileToDataSet("http://news.baidu.com/n?cmd=1&class=sportnews&tn=rss");
????????????//foreach?(DataRow?row?in?ds.Tables[0].Rows)
????????????//{
????????????//????string?name?=?row["name"].ToString();
????????????//????string?age?=?row["age"].ToString();
????????????//}

????????????StringReader?sreader?=?null;
????????????XmlTextReader?xtreader?=?null;
????????????try
????????????{
????????????????XmlDocument?doc?=?new?XmlDocument();
????????????????doc.Load(Server.MapPath("xmltodataset.xml"));
????????????????
????????????????sreader?=?new?StringReader(doc.InnerXml);
????????????????xtreader?=?new?XmlTextReader(sreader);
????????????????ds.ReadXml(xtreader);
????????????}
????????????catch?(Exception)
????????????{

????????????????throw;

????????????}
????????????finally
????????????{
????????????????xtreader.Close();
????????????????sreader.Close();
????????????}

????????????this.GridView1.DataSource?=?ds.Tables[0];
????????????this.GridView1.DataBind();
????????}

????????protected?void?Button1_Click(object?sender,?EventArgs?e)
????????{
????????????this.Add();
????????}

????????protected?void?Button2_Click(object?sender,?EventArgs?e)
????????{
????????????this.Update();
????????}

????????protected?void?GridView1_RowCommand(object?sender,?GridViewCommandEventArgs?e)
????????{
????????????if?(e.CommandName?==?"edi")
????????????{?
????????????????//通過ID?獲取對象，給控件賦值
????????????????string[]?entity?=?this.GetEntity(e.CommandArgument.ToString()).Split('|');
????????????????this.TextBox4.Text?=?entity[0];
????????????????this.TextBox5.Text?=?entity[1];
????????????????this.TextBox6.Text?=?entity[2];
????????????}
????????????else?if?(e.CommandName?==?"del")
????????????{?
???????????????//通過ID刪除對象
????????????????this.Delete(e.CommandArgument.ToString());
????????????}
????????}


????????private?void?Add()
????????{
????????????string?id?=?this.TextBox1.Text;
????????????string?name?=?this.TextBox2.Text;
????????????string?age?=?this.TextBox3.Text;

????????????//在第一個前面插入一條信息
????????????XmlDocument?doc?=?new?XmlDocument();
????????????doc.Load(Server.MapPath("xmltodataset.xml"));
????????????XmlNode?students?=?doc.SelectSingleNode("students");

????????????XmlElement?student?=?doc.CreateElement("student");
????????????//student.SetAttribute("id",id);

????????????XmlElement?ele_id?=?doc.CreateElement("id");
????????????ele_id.InnerText?=?id;
????????????student.AppendChild(ele_id);

????????????XmlElement?ele_name?=?doc.CreateElement("name");
????????????ele_name.InnerText?=?name;
????????????student.AppendChild(ele_name);

????????????XmlElement?ele_age?=?doc.CreateElement("age");
????????????ele_age.InnerText?=?age;
????????????student.AppendChild(ele_age);

????????????students.InsertBefore(student,students.FirstChild);

????????????doc.Save(Server.MapPath("xmltodataset.xml"));

????????????//重新加載GridView
????????????LoadGridView();

????????????this.TextBox1.Text?=?"";
????????????this.TextBox2.Text?=?"";
????????????this.TextBox3.Text?=?"";
????????}
????????private?void?Delete(string?id)
????????{
????????????//通過ID獲取信息
????????????XmlDocument?doc?=?new?XmlDocument();
????????????doc.Load(Server.MapPath("xmltodataset.xml"));
????????????XmlNode?students?=?doc.SelectSingleNode("students");
????????????foreach?(XmlNode?student?in?students.ChildNodes)
????????????{
????????????????XmlNode?node_id?=?student.FirstChild;
????????????????if?(node_id.InnerText?==?id)
????????????????{
????????????????????student.ParentNode.RemoveChild(student);
????????????????}
????????????}
????????????doc.Save(Server.MapPath("xmltodataset.xml"));
????????????LoadGridView();
????????}
????????private?void?Update()
????????{
????????????string?id?=?this.TextBox4.Text;
????????????string?name?=?this.TextBox5.Text;
????????????string?age?=?this.TextBox6.Text;

????????????//通過ID獲取信息，然后更改信息
????????????XmlDocument?doc?=?new?XmlDocument();
????????????doc.Load(Server.MapPath("xmltodataset.xml"));
????????????XmlNode?students?=?doc.SelectSingleNode("students");
????????????foreach?(XmlNode?student?in?students.ChildNodes)
????????????{
????????????????XmlNode?temp_node?=?student.FirstChild;
????????????????if?(temp_node.InnerText?==?id)
????????????????{
????????????????????//第一種方式
????????????????????//student.RemoveAll();
????????????????????//XmlElement?ele_id?=?doc.CreateElement("id");
????????????????????//ele_id.InnerText?=?id;
????????????????????//student.AppendChild(ele_id);

????????????????????//XmlElement?ele_name?=?doc.CreateElement("name");
????????????????????//ele_name.InnerText?=?name;
????????????????????//student.AppendChild(ele_name);

????????????????????//XmlElement?ele_age?=?doc.CreateElement("age");
????????????????????//ele_age.InnerText?=?age;
????????????????????//student.AppendChild(ele_age);

????????????????????//第二種方式
????????????????????student.ChildNodes[0].InnerText?=?id;
????????????????????student.ChildNodes[1].InnerText?=?name;
????????????????????student.ChildNodes[2].InnerText?=?age;

????????????????????doc.Save(Server.MapPath("xmltodataset.xml"));
????????????????????break;
????????????????}
????????????}

????????????LoadGridView();
????????}
????????private?string?GetEntity(string?id)
????????{
????????????string?entity?=?"";
????????????XmlDocument?doc?=?new?XmlDocument();
????????????doc.Load(Server.MapPath("xmltodataset.xml"));
????????????XmlNode?students?=?doc.SelectSingleNode("students");
???????????
????????????foreach?(XmlNode?student?in?students.ChildNodes)
????????????{
????????????????XmlNode?temp_node?=?student.FirstChild;
????????????????if?(temp_node.InnerText?==?id)
????????????????{
????????????????????foreach?(XmlNode?item?in?student.ChildNodes)
????????????????????{
????????????????????????entity?+=?item.InnerText?+?"|";
????????????????????}
????????????????????entity?=?entity.Substring(0,entity.Length?-1);
????????????????????break;
????????????????}
????????????}
????????????return?entity;
????????}
????}
}

?

?項目示例下載：XMLDemo.rar

總結

以上是生活随笔為你收集整理的ASP.NET操作简单的xml，增删改查的全部內容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網站內容還不錯，歡迎將生活随笔推薦給好友。