An instance of XML operation class implemented by C

This article illustrates the XML operation class implemented by C #. Share it for your reference. The details are as follows:

Here is one XML operation class written by C #, including read/insert/modify/delete.

using System;
using System.Data;
using System.Configuration;
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;
namespace PuTianCheng
{
 /// <summary>
 /// XmlHelper  Summary description of 
 /// </summary>
 public class XmlHelper
 {
  public XmlHelper()
  {
  }
  /// <summary>
  ///  Read data 
  /// </summary>
  /// <param name="path"> Path </param>
  /// <param name="node"> Node </param>
  /// <param name="attribute"> Attribute name, which returns the attribute value if it is not empty, otherwise it returns the concatenated value </param>
  /// <returns>string</returns>
  public static string Read(string path, string node, string attribute)
  {
   string value = "";
   try
   {
    XmlDocument doc = new XmlDocument();
    doc.Load(path);
    XmlNode xn = doc.SelectSingleNode(node);
    value = (attribute.Equals("") ? xn.InnerText : xn.Attributes[attribute].Value);
   }
   catch { }
   return value;
  }
  /// <summary>
  ///  Insert data 
  /// </summary>
  /// <param name="path"> Path </param>
  /// <param name="node"> Node </param>
  /// <param name="element"> Element name, insert a new element if it is not empty, otherwise insert an attribute in the element </param>
  /// <param name="attribute"> Attribute name, insert the element attribute value if it is not empty, otherwise insert the element value </param>
  /// <param name="value"> Value </param>
  /// <returns></returns>
  public static void Insert(string path, string node, string element, string attribute, string value)
  {
   try
   {
    XmlDocument doc = new XmlDocument();
    doc.Load(path);
    XmlNode xn = doc.SelectSingleNode(node);
    if (element.Equals(""))
    {
     if (!attribute.Equals(""))
     {
      XmlElement xe = (XmlElement)xn;
      xe.SetAttribute(attribute, value);
     }
    }
    else
    {
     XmlElement xe = doc.createElement_x(element);
     if (attribute.Equals(""))
      xe.InnerText = value;
     else
      xe.SetAttribute(attribute, value);
     xn.AppendChild(xe);
    }
    doc.Save(path);
   }
   catch { }
  }
  /// <summary>
  ///  Modify data 
  /// </summary>
  /// <param name="path"> Path </param>
  /// <param name="node"> Node </param>
  /// <param name="attribute"> Attribute name. If it is not empty, modify the attribute value of this node; Otherwise, modify the node value </param>
  /// <param name="value"> Value </param>
  /// <returns></returns>
  public static void Update(string path, string node, string attribute, string value)
  {
   try
   {
    XmlDocument doc = new XmlDocument();
    doc.Load(path);
    XmlNode xn = doc.SelectSingleNode(node);
    XmlElement xe = (XmlElement)xn;
    if (attribute.Equals(""))
     xe.InnerText = value;
    else
     xe.SetAttribute(attribute, value);
    doc.Save(path);
   }
   catch { }
  }
  /// <summary>
  ///  Delete data 
  /// </summary>
  /// <param name="path"> Path </param>
  /// <param name="node"> Node </param>
  /// <param name="attribute"> Attribute name. If it is not empty, delete the node attribute value; Otherwise, delete the node value </param>
  /// <param name="value"> Value </param>
  /// <returns></returns>
  public static void Delete(string path, string node, string attribute)
  {
   try
   {
    XmlDocument doc = new XmlDocument();
    doc.Load(path);
    XmlNode xn = doc.SelectSingleNode(node);
    XmlElement xe = (XmlElement)xn;
    if (attribute.Equals(""))
     xn.ParentNode.RemoveChild(xn);
    else
     xe.RemoveAttribute(attribute);
    doc.Save(path);
   }
   catch { }
  }
 }
}

XmlFile. xml:

<?xml version="1.0" encoding="utf-8"?>
<Root />

Usage:

string xml = Server.MapPath("XmlFile.xml");
// Insert element 
XmlHelper.Insert(xml, "/Root", "Studio", "", "");
// Insert element / Attribute 
XmlHelper.Insert(xml, "/Root/Studio", "Site", "Name", " Alley Studio ");
XmlHelper.Insert(xml, "/Root/Studio", "Site", "Name", " Clove Fish Studio ");
XmlHelper.Insert(xml, "/Root/Studio", "Site", "Name", " Putiancheng studio ");
XmlHelper.Insert(xml, "/Root/Studio/Site[@Name=' Putiancheng studio ']", "Master", "", " Meditation on the world of mortals ");
// Insert attribute 
XmlHelper.Insert(xml, "/Root/Studio/Site[@Name=' Alley Studio ']", "", "Url", "http://www.wzlu.com/");
XmlHelper.Insert(xml, "/Root/Studio/Site[@Name=' Clove Fish Studio ']", "", "Url", "http://www.luckfish.net/");
XmlHelper.Insert(xml, "/Root/Studio/Site[@Name=' Putiancheng studio ']", "", "Url", "http://www.putiancheng.com/");
// Modify element value 
XmlHelper.Update(xml, "/Root/Studio/Site[@Name=' Putiancheng studio ']/Master", "", "RedDust");
// Modify property values 
XmlHelper.Update(xml, "/Root/Studio/Site[@Name=' Putiancheng studio ']", "Url", "http://www.putiancheng.net/");
XmlHelper.Update(xml, "/Root/Studio/Site[@Name=' Putiancheng studio ']", "Name", "PuTianCheng Studio");
// Read element value 
Response.Write("<div>" + XmlHelper.Read(xml, "/Root/Studio/Site/Master", "") + "</div>");
// Read property values 
Response.Write("<div>" + XmlHelper.Read(xml, "/Root/Studio/Site", "Url") + "</div>");
// Read the value of a specific attribute 
Response.Write("<div>" + XmlHelper.Read(xml, "/Root/Studio/Site[@Name=' Clove Fish Studio ']", "Url") + "</div>");
// Delete attribute 
XmlHelper.Delete(xml, "/Root/Studio/Site[@Name=' Alley Studio ']", "Url");
// Delete Element 
XmlHelper.Delete(xml, "/Root/Studio", "");

I hope this article is helpful to everyone's C # programming.