C#实现的XML操作类实例
发布时间:2020-12-15 05:58:48 所属栏目:百科 来源:网络整理
导读:本篇章节讲解C#实现的XML操作类。供大家参考研究。具体如下: 这里讲述了C#写的一个XML操作类,包括读取/插入/修改/删除。 using System;using System.Data;using System.Configuration;using System.Web;using System.Web.Security;using System.We
本篇章节讲解C#实现的XML操作类。分享给大家供大家参考。具体如下: 这里讲述了C#写的一个XML操作类,包括读取/插入/修改/删除。 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 的摘要说明 /// </summary> public class XmlHelper { public XmlHelper() { } /// <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> 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> public static void Insert(string path,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> public static void Update(string path,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> public static void Delete(string path,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 /> 使用方法: 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,"丁香鱼工作室"); XmlHelper.Insert(xml,"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","http://www.wzlu.com/"); XmlHelper.Insert(xml,"/Root/Studio/Site[@Name='丁香鱼工作室']","http://www.luckfish.net/"); XmlHelper.Insert(xml,"http://www.putiancheng.com/"); //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,"http://www.putiancheng.net/"); XmlHelper.Update(xml,"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,"Url") + "</div>"); //删除属性 XmlHelper.Delete(xml,"Url"); //删除元素 XmlHelper.Delete(xml,""); 希望本文所述对大家的C#程序设计有所帮助。 (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |