XML文件操作类--创建XML文件

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml;

namespace testForm
{
    class Operation_APPCFG
    {
        XmlDocument xmldoc;
        XmlNode xmlnode;
        XmlElement xmlelem;
        XmlDeclaration xmldecl;

        /// <summary>
        /// 构造函数
        /// </summary>
        public Operation_APPCFG()
        {
            xmldoc = new XmlDocument();
        }
        /// <summary>
        /// 创建XML文件的段落声明
        /// </summary>
        /// <param name="strEncoding">XML编码方式，输入"gb2312"、"utf-8"</param>
        /// <param name="strStandalone">独立特性，输入"yes"、"no"或"null"，默认为"null"</param>
        public void CreateDeclaration(string strEncoding,string strStandalone)
        {
            if ((strEncoding == null) || (strEncoding == ""))
            {
                strEncoding = null;
            }
            if ((strStandalone == null) || (strStandalone == ""))
            {
                strStandalone = null;
            }
            else
            {
                if (!strStandalone.Equals("yes") || !strStandalone.Equals("no"))
                {
                    strStandalone = null;
                }
            }
            xmldecl = xmldoc.CreateXmlDeclaration("1.0", strEncoding, strStandalone);
            xmldoc.AppendChild(xmldecl);
        }

        /// <summary>
        /// 创建root元素
        /// </summary>
        /// <param name="localName">root元素的名称</param>
        public void CreateElement(string localName)
        {
            xmlelem = xmldoc.CreateElement("", localName, "");
            xmldoc.AppendChild(xmlelem);
        }

        /// <summary>
        /// 创建节点的子节点，模式 <Node subA="subA" subB="subB"></Node>
        /// </summary>
        /// <param name="parentName">父节点的名称</param>
        /// <param name="NodeName">节点的名称</param>
        /// <param name="hash">需创建的子节点的hashtable</param>
        public void CreateNodeModeA(string parentName, string NodeName, Hashtable hash)
        {
            XmlNode root = xmldoc.SelectSingleNode(parentName);
            XmlElement xe1 = xmldoc.CreateElement("Node");//创建一个<Node>节点 
            foreach (DictionaryEntry de in hash)
            {
                xe1.SetAttribute(de.Key.ToString(), de.Value.ToString());//设置该节点genre属性 //xe1.SetAttribute("ISBN", "2-3631-4");
            }
            root.AppendChild(xe1);
        }
        /// <summary>
        /// 创建节点的子节点(泛型方法)，模式 <Node subA="subA" subB="subB"></Node>
        /// </summary>
        /// <param name="parentName">父节点的名称</param>
        /// <param name="NodeName">节点的名称</param>
        /// <param name="hash">需创建的子节点的hashtable</param>
        public void CreateNodeModeB(string parentName,string NodeName, Dictionary<string, string> hash )
        {
            XmlNode root = xmldoc.SelectSingleNode(parentName);
            XmlElement xe1 = xmldoc.CreateElement("Node");//创建一个<Node>节点 
            foreach (KeyValuePair<string, string> de in hash)
            {
                xe1.SetAttribute(de.Key.ToString(), de.Value.ToString());//设置该节点genre属性 //xe1.SetAttribute("ISBN", "2-3631-4");
            }
            root.AppendChild(xe1);
        }

        /// <summary>
        /// 创建节点的子节点(泛型方法)，模式 <title>入门到精通</title>
        /// </summary>
        /// <param name="NodeName">节点的名称</param>
        /// <param name="hash">需创建的子节点的hashtable</param>
        public void CreateNodeModeC(string parentName,Hashtable hash)
        {
            XmlNode root = xmldoc.SelectSingleNode(parentName);
            XmlElement xesub1;
            foreach (DictionaryEntry de in hash)
            {
                xesub1 = xmldoc.CreateElement(de.Key.ToString());
                xesub1.InnerText = de.Value.ToString();//设置文本节点 
                root.AppendChild(xesub1);
            }
        }
        /// <summary>
        /// 保存文件
        /// </summary>
        /// <param name="pathFile"></param>
        public void SaveFile(string pathFile)
        {
            xmldoc.Save(pathFile);
        }

    }
}

        public void CreateFile()
        {
            
            //加入XML的声明段落,<?xml version="1.0" encoding="gb2312"?>
            XmlDeclaration xmldecl = xmldoc.CreateXmlDeclaration("1.0", null, null);//encoding mode:"gb2312"、"utf-8"，也可以为null
            xmldoc.AppendChild(xmldecl);

            //加入一个根元素
            xmlelem = xmldoc.CreateElement("", "configuration", "");
            xmldoc.AppendChild(xmlelem);
            //加入另外一个元素
            for (int i = 1; i < 3; i++)
            {

                XmlNode root = xmldoc.SelectSingleNode("Employees");//查找<Employees> 
                XmlElement xe1 = xmldoc.CreateElement("Node");//创建一个<Node>节点 
                xe1.SetAttribute("genre", "DouCube");//设置该节点genre属性 
                xe1.SetAttribute("ISBN", "2-3631-4");//设置该节点ISBN属性 

                XmlElement xesub1 = xmldoc.CreateElement("title");
                xesub1.InnerText = "CS从入门到精通";//设置文本节点 
                xe1.AppendChild(xesub1);//添加到<Node>节点中 
                XmlElement xesub2 = xmldoc.CreateElement("author");
                xesub2.InnerText = "候捷";
                xe1.AppendChild(xesub2);
                XmlElement xesub3 = xmldoc.CreateElement("price");
                xesub3.InnerText = "58.3";
                xe1.AppendChild(xesub3);

                root.AppendChild(xe1);//添加到<Employees>节点中 
            }
            //保存创建好的XML文档
            xmldoc.Save("DB.cfg");
        }