关于XML文件的操作类代码,CSharp代码库,德仔网

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【CSharp】关于XML文件的操作类
作者:Dezai.CN / 发布于2012/10/9/ 469
<div>/// <summary>
 /// 读取数据
 /// </summary>
 /// <param name="path">路径</param>
 /// <param name="node">节点</param>
 /// <param name="attribute">属性名，非空时返回该属性值，否则返回串联值</param>
 /// <returns>string</returns>
 /**************************************************
 * 使用示列:
 * XmlHelper.Read(path, "/Node", "")
 * XmlHelper.Read(path, "/Node/Element[@Attribute='Name']", "Attribute")
 ************************************************/
 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>
 /// 插入数据
 /// </summary>
 /// <param name="path">路径</param>
 /// <param name="node">节点</param>
 /// <param name="element">元素名，非空时插入新元素，否则在该元素中插入属性</param>
 /// <param name="attribute">属性名，非空时插入该元素属性值，否则插入元素值</param>
 /// <param name="value">值</param>
 /// <returns></returns>
 /**************************************************
 * 使用示列:
 * XmlHelper.Insert(path, "/Node", "Element", "", "Value")
 * XmlHelper.Insert(path, "/Node", "Element", "Attribute", "Value")
 * XmlHelper.Insert(path, "/Node", "", "Attribute", "Value")
 ************************************************/
 public static void Insert(string path, string node, string element, string attribute, string value)
 {
 try
 {
 XmlDocument doc = new XmlDocument();
 doc.Load("XmlFile.xml");
 XmlNode xn = doc.SelectSingleNode(node);
 if (element.Equals(""))
 {
 if (!attribute.Equals(""))
 {
 XmlElement xe = (XmlElement)xn;
 xe.SetAttribute(attribute, value);
 }
 }
 else
 {
 XmlElement xe = doc.CreateElement(element);
 if (attribute.Equals(""))
 xe.InnerText = value;
 else
 xe.SetAttribute(attribute, value);
 xn.AppendChild(xe);
 }
 doc.Save(path);
 }
 catch { }
 }
 /// <summary>
 /// 修改数据
 /// </summary>
 /// <param name="path">路径</param>
 /// <param name="node">节点</param>
 /// <param name="attribute">属性名，非空时修改该节点属性值，否则修改节点值</param>
 /// <param name="value">值</param>
 /// <returns></returns>
 /**************************************************
 * 使用示列:
 * XmlHelper.Insert(path, "/Node", "", "Value")
 * XmlHelper.Insert(path, "/Node", "Attribute", "Value")
 ************************************************/
 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>
 /// 删除数据
 /// </summary>
 /// <param name="path">路径</param>
 /// <param name="node">节点</param>
 /// <param name="attribute">属性名，非空时删除该节点属性值，否则删除节点值</param>
 /// <param name="value">值</param>
 /// <returns></returns>
 /**************************************************
 * 使用示列:
 * XmlHelper.Delete(path, "/Node", "")
 * XmlHelper.Delete(path, "/Node", "Attribute")
 ************************************************/
 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 { }
 }
 #region 使用方法
 //==================================================
 //XmlFile.xml：
 //<?xml version="1.0" encoding="utf-8"?>
 //<Root />
 //==================================================
 
 //string xml = Server.MapPath("XmlFile.xml");
 //插入元素
 //XmlHelper.Insert(xml, "/Root", "Studio", "", "");
 //插入元素/属性
 //XmlHelper.Insert(xml, "/Root/Studio", "Site", "Name", "小路工作室");
 //XmlHelper.Insert(xml, "/Root/Studio", "Site", "Name", "丁香鱼工作室");
 //XmlHelper.Insert(xml, "/Root/Studio", "Site", "Name", "谱天城工作室");
 //XmlHelper.Insert(xml, "/Root/Studio/Site[@Name='谱天城工作室']", "Master", "", "红尘静思");
 //插入属性
 //XmlHelper.Insert(xml, "/Root/Studio/Site[@Name='小路工作室']", "", "Url", "<a href="http://www.wzlu.com/">http://www.wzlu.com/</a>");
 //XmlHelper.Insert(xml, "/Root/Studio/Site[@Name='丁香鱼工作室']", "", "Url", "<a href="http://www.luckfish.net/">http://www.luckfish.net/</a>");
 //XmlHelper.Insert(xml, "/Root/Studio/Site[@Name='谱天城工作室']", "", "Url", "<a href="http://www.putiancheng.com/">http://www.putiancheng.com/</a>");
 //修改元素值
 //XmlHelper.Update(xml, "/Root/Studio/Site[@Name='谱天城工作室']/Master", "", "RedDust");
 //修改属性值
 //XmlHelper.Update(xml, "/Root/Studio/Site[@Name='谱天城工作室']", "Url", "<a href="http://www.putiancheng.net/">http://www.putiancheng.net/</a>");
 //XmlHelper.Update(xml, "/Root/Studio/Site[@Name='谱天城工作室']", "Name", "PuTianCheng Studio");
 //读取元素值
 //Response.Write("<div>" + XmlHelper.Read(xml, "/Root/Studio/Site/Master", "") + "</div>");
 //读取属性值
 //Response.Write("<div>" + XmlHelper.Read(xml, "/Root/Studio/Site", "Url") + "</div>");
 //读取特定属性值
 //Response.Write("<div>" + XmlHelper.Read(xml, "/Root/Studio/Site[@Name='丁香鱼工作室']", "Url") + "</div>");
 //删除属性
 //XmlHelper.Delete(xml, "/Root/Studio/Site[@Name='小路工作室']", "Url");
 //删除元素
 //XmlHelper.Delete(xml, "/Root/Studio", "");
 #endregion</div>
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　XML操作类　
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