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using
System;using
System.Collections.Generic;using
System.Linq;using
System.Text;using
System.Xml;using
System.IO;using
System.Windows.Forms;namespace
MyVertion{ class
XMLOperate { private
string m_configPath = Application.StartupPath + @"\DatabaseConfig.xml"; private
string vertion = "1.0"; private
string encoding = "UTF-8"; private
string standalone = "no"; private
string comment = "Database Config"; private
XmlDocument xmlDoc = null; private
static volatile XMLOperate XmlOp = null; public
static XMLOperate GetInstance() { if
(null
== XmlOp) { XmlOp = new
XMLOperate(null); } return
XmlOp; } public
string _Vertion { set { vertion = value; } get { return
vertion; } } public
string _Encoding { set { encoding = value; } get { return
encoding; } } public
string _Standalone { set { standalone = value; } get { return
standalone; } } public
string _Comment { set { comment = value; } get { return
comment; } } public
string _ConfigPath { get { return
m_configPath; } } #region 构造函数 public
XMLOperate(string
xmlPath) { if
(!string.IsNullOrEmpty(xmlPath)) { m_configPath = xmlPath; } xmlDoc = new
XmlDocument(); } #endregion //创建configxml文件 public
void CreateConfigXml() { xmlDoc.CreateXmlDeclaration(vertion, encoding, standalone); xmlDoc.CreateComment(comment); XmlElement rootEle = xmlDoc.CreateElement("Connection"); xmlDoc.AppendChild(rootEle); XmlElement ele = xmlDoc.CreateElement("Server"); rootEle.AppendChild(ele); ele = xmlDoc.CreateElement("Instance"); rootEle.AppendChild(ele); ele = xmlDoc.CreateElement("Database"); rootEle.AppendChild(ele); ele = xmlDoc.CreateElement("UserName"); rootEle.AppendChild(ele); //ele = xmlDoc.CreateElement("Password"); //rootEle.AppendChild(ele); ele = xmlDoc.CreateElement("Vertion"); rootEle.AppendChild(ele); xmlDoc.Save(m_configPath); //加入XML的声明段落,<?xml version="1.0" encoding="utf-8"?>// xmlDoc.LoadXml(@"<?xml version=""1.0"" encoding=""utf-8""?>// <Connection>// </Connection>");// XmlNode root = xmlDoc.SelectSingleNode("Connection"); } //检查配置文件是否存在 public
bool IsExist() { return
File.Exists(m_configPath); } //保存、更改xml文件 public
bool UpdateConfigInfo(string
server, string
instance, string
database, string
username, string
password, string
version) { if
(!IsExist()) { return
false; } XmlNode root = xmlDoc.SelectSingleNode("Connection"); XmlNode xnd = root.SelectSingleNode("Server"); xnd.InnerText = server; xnd = root.SelectSingleNode("Instance"); xnd.InnerText = instance; xnd = root.SelectSingleNode("Database"); xnd.InnerText = database; xnd = root.SelectSingleNode("UserName"); xnd.InnerText = username; //xnd = root.SelectSingleNode("Password"); //xnd.InnerText = password; xnd = root.SelectSingleNode("Vertion"); if
(!string.IsNullOrEmpty(version)) { xnd.InnerText = version; } xmlDoc.Save(m_configPath); return
true; } /// <summary> /// 读配置文件 /// </summary> /// <returns></returns> public
string ReadConfigInfo(string
item) { if
(!IsExist()) { //MessageBox.Show("配置文件不存在！", "提示：", MessageBoxButtons.OK, MessageBoxIcon.Warning); return
null; } else { xmlDoc.Load(m_configPath); XmlNode root = xmlDoc.SelectSingleNode("Connection"); XmlNode xnd = root.SelectSingleNode(item); return
xnd.InnerText; } } }} |
原文：http://www.cnblogs.com/shenchao/p/3673944.html