C#完成的XML操作類實例

C#完成的XML操作類實例。本站提示廣大學習愛好者：（C#完成的XML操作類實例）文章只能為提供參考，不一定能成為您想要的結果。以下是C#完成的XML操作類實例正文

本文實例講述了C#完成的XML操作類。分享給年夜家供年夜家參考。詳細以下：

這裡講述了C#寫的一個XML操作類，包含讀取/拔出/修正/刪除。

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 的摘要解釋
 /// </summary>
 public class XmlHelper
 {
  public XmlHelper()
  {
  }
  /// <summary>
  /// 讀取數據
  /// </summary>
  /// <param name="path">途徑</param>
  /// <param name="node">節點</param>
  /// <param name="attribute">屬性名，非空時前往該屬性值，不然前往串連值</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>
  /// 拔出數據
  /// </summary>
  /// <param name="path">途徑</param>
  /// <param name="node">節點</param>
  /// <param name="element">元素名，非空時拔出新元素，不然在該元素中拔出屬性</param>
  /// <param name="attribute">屬性名，非空時拔出該元素屬性值，不然拔出元素值</param>
  /// <param name="value">值</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>
  /// 修正數據
  /// </summary>
  /// <param name="path">途徑</param>
  /// <param name="node">節點</param>
  /// <param name="attribute">屬性名，非空時修正該節點屬性值，不然修正節點值</param>
  /// <param name="value">值</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>
  /// 刪除數據
  /// </summary>
  /// <param name="path">途徑</param>
  /// <param name="node">節點</param>
  /// <param name="attribute">屬性名，非空時刪除該節點屬性值，不然刪除節點值</param>
  /// <param name="value">值</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 />

應用辦法：

string xml = Server.MapPath("XmlFile.xml");
//拔出元素
XmlHelper.Insert(xml, "/Root", "Studio", "", "");
//拔出元素/屬性
XmlHelper.Insert(xml, "/Root/Studio", "Site", "Name", "巷子任務室");
XmlHelper.Insert(xml, "/Root/Studio", "Site", "Name", "丁噴鼻魚任務室");
XmlHelper.Insert(xml, "/Root/Studio", "Site", "Name", "譜天城任務室");
XmlHelper.Insert(xml, "/Root/Studio/Site[@Name='譜天城任務室']", "Master", "", "塵凡靜思");
//拔出屬性
XmlHelper.Insert(xml, "/Root/Studio/Site[@Name='巷子任務室']", "", "Url", "http://www.wzlu.com/");
XmlHelper.Insert(xml, "/Root/Studio/Site[@Name='丁噴鼻魚任務室']", "", "Url", "http://www.luckfish.net/");
XmlHelper.Insert(xml, "/Root/Studio/Site[@Name='譜天城任務室']", "", "Url", "http://www.putiancheng.com/");
//修正元素值
XmlHelper.Update(xml, "/Root/Studio/Site[@Name='譜天城任務室']/Master", "", "RedDust");
//修正屬性值
XmlHelper.Update(xml, "/Root/Studio/Site[@Name='譜天城任務室']", "Url", "http://www.putiancheng.net/");
XmlHelper.Update(xml, "/Root/Studio/Site[@Name='譜天城任務室']", "Name", "PuTianCheng Studio");
//讀取元素值
Response.Write("<div>" + XmlHelper.Read(xml, "/Root/Studio/Site/Master", "") + "</div>");
//讀取屬性值
Response.Write("<div>" + XmlHelper.Read(xml, "/Root/Studio/Site", "Url") + "</div>");
//讀取特定屬性值
Response.Write("<div>" + XmlHelper.Read(xml, "/Root/Studio/Site[@Name='丁噴鼻魚任務室']", "Url") + "</div>");
//刪除屬性
XmlHelper.Delete(xml, "/Root/Studio/Site[@Name='巷子任務室']", "Url");
//刪除元素
XmlHelper.Delete(xml, "/Root/Studio", "");

願望本文所述對年夜家的C#法式設計有所贊助。