C#对XML操作：一个处理XML文件的类（2）

C#操作XML初步（8）

第四章：通用的XML处理方法（2）
上一篇，我们提供了一个类，用来操作XML文件，这里提供一个应用的例子，来源于无聊时候写的一个XML留言本中对留言数据的处理
代码如下：

using System;
using System.IO;
using System.Data;
using System.Diagnostics;
using XmlBook.Com.Sem.Tools;   //这里就包含了上一篇提供的类

namespace XmlBook.Component
{
	/// <summary>
	/// 版权： Copyright by SEM IT Department
	/// 版本： 0.0.1
	/// 文件： XmlBook.Component.MdlDataMange.cs
	/// 目的： 留言数据相关的操作
	/// 作者： 欧远宁 @2005-04-09
	/// 邮箱： outrace@soueast-motor.com
	/// 修改：
	/// </summary>
	public class MdlDataManage
	{

		#region 私有成员
		private string strID = null;
		private string strName = null;
		private string strSex = null;
		private string strEmail = "no email";
		private string strPage = "no page";
		private string strQQ = "no QQ";
		private string strSubject = null;
		private string strContent = null;
		private string strReply = "no reply";
		private string strFilter = null;
		#endregion
		
		#region 公有成员
		/// <summary>
		/// 姓名
		/// </summary>
		public string StrName
		{
			get{return this.strName;}
			set{this.strName = value;}
		}
		/// <summary>
		/// 性别
		/// </summary>
		public string StrSex
		{
			get{return this.strSex;}
			set{this.strSex = value;}
		}
		/// <summary>
		/// 邮箱
		/// </summary>
		public string StrEmail
		{
			get{return this.strEmail;}
			set{this.strEmail = value;}
		}
		/// <summary>
		/// 主页
		/// </summary>
		public string StrPage
		{
			get{return this.strPage;}
			set{this.strPage = value;}
		}

		/// <summary>
		/// OICQ号码
		/// </summary>
		public string StrQQ
		{
			get{return this.strQQ;}
			set{this.strQQ = value;}
		}
		/// <summary>
		/// 主题
		/// </summary>
		public string StrSubject
		{
			get{return this.strSubject;}
			set{this.strSubject = value;}
		}
		/// <summary>
		/// 内容
		/// </summary>
		public string StrContent
		{
			get{return this.strContent;}
			set{this.strContent = value;}
		}
		/// <summary>
		/// 回复
		/// </summary>
		public string StrReply
		{
			get{return this.strReply;}
			set{this.strReply = value;}
		}
		/// <summary>
		/// ID号
		/// </summary>
		public string StrID
		{
			get{return this.strID;}
			set{this.strID = value;}
		}
		public string StrFilter
		{
			get{return this.strFilter;}
			set{this.strFilter = value;}
		}
		#endregion


		public MdlDataManage()
		{
			//
			// TODO: 留言数据相关的操作
			//
		}

		/// <summary>
		/// 新增一条留言（这里演示如何新增一笔记录）
		/// </summary>
		public void Add()
		{
			string [] arrFileds = new string[10];
			string [] arrValues = new string[10];
			arrFileds[0] = "ID";
			arrFileds[1] = "Name";
			arrFileds[2] = "Sex";
			arrFileds[3] = "Email";
			arrFileds[4] = "Page";
			arrFileds[5] = "QQ";
			arrFileds[6] = "Subject";
			arrFileds[7] = "Content";
			arrFileds[8] = "Reply";
			arrFileds[9] = "DateTime";
			arrValues[0] = DateTime.Now.ToFileTime().ToString();
			arrValues[1] = this.strName;
			arrValues[2] = this.strSex;
			arrValues[3] = this.strEmail;
			arrValues[4] = this.strPage;
			arrValues[5] = this.strQQ;
			arrValues[6] = this.strSubject;
			arrValues[7] = this.strContent;
			arrValues[8] = "no reply";
			arrValues[9] = DateTime.Now.ToString();
			try
			{
				XmlDataBase xml = new XmlDataBase();
				xml.StrDataFile = Config.DataFile;
				xml.StrFields = arrFileds;
				xml.StrData   = arrValues;
				xml.Insert();
				xml.Clear();
			}
			catch(Exception ee)
			{
				Log log = new Log();
				log.StrUser = "<a target="_blank" href="http://www.zhlw.com/" class="UBBWordLink">系统</a>";
				log.StrDepartment = "签写留言";
				log.StrFileName = "XmlBook.Component.MdlDataManage.cs";
				log.StrDescription = ee.Message;
				log.WriteLog();
			}
		}

		/// <summary>
		/// 回复留言（这里演示如何修改某一笔XML记录）
		/// </summary>
		public void Reply()
		{
			string [] arrFileds = new string[1];
			string [] arrValues = new string[1];
			arrFileds[0] = "Reply";
			arrValues[0] = this.strReply;
			try
			{
				XmlDataBase xml = new XmlDataBase();
				xml.StrDataFile = Config.DataFile;
				xml.StrData = arrValues;
				xml.StrFields = arrFileds;
				xml.StrFilter = "ID='"+this.StrID+"'";
				xml.Update();
				xml.Clear();
			}
			catch(Exception ee)
			{
				Log log = new Log();
				log.StrUser = "<a target="_blank" href="http://www.zhlw.com/" class="UBBWordLink">系统</a>";
				log.StrDepartment = "回复数据";
				log.StrFileName = "XmlBook.Component.MdlDataManage.cs";
				log.StrDescription = ee.Message;
				log.WriteLog();
			}
		}

		/// <summary>
		/// 删除留言（这里演示如何删除一笔记录）
		/// </summary>
		public void Delete()
		{
			try
			{
				XmlDataBase xml = new XmlDataBase();
				xml.StrDataFile = Config.DataFile;
				xml.StrFilter = "ID = '"+ this.strID +"'";
				xml.Delete();
				xml.Clear();
			}
			catch(Exception ee)
			{
				Log log = new Log();
				log.StrUser = "<a target="_blank" href="http://www.zhlw.com/" class="UBBWordLink">系统</a>";
				log.StrDepartment = "回复数据";
				log.StrFileName = "XmlBook.Component.MdlDataManage.cs";
				log.StrDescription = ee.Message;
				log.WriteLog();
			}
		}

		/// <summary>
		/// 获取几行行留言数据（这里演示获取一行或多行数据）
		/// </summary>
		/// <returns>各行数据</returns>
		public DataRow[] GetOneRow()
		{
			XmlDataBase xml = new XmlDataBase();
			DataRow[] dr = null;
			try
			{				
				xml.StrDataFile = Config.DataFile;
				xml.StrFilter = this.strFilter;
				dr = xml.SelectRows();
				return dr;
			}
			catch(Exception ee)
			{
				Log log = new Log();
				log.StrUser = "<a target="_blank" href="http://www.zhlw.com/" class="UBBWordLink">系统</a>";
				log.StrDepartment = "获取一行数据";
				log.StrFileName = "XmlBook.Component.MdlDataManage.cs";
				log.StrDescription = ee.Message;
				log.WriteLog();
				return dr;
			}
			finally
			{				
				xml.Clear();
			}
		}

		/// <summary>
		/// 获取视图
		/// </summary>
		/// <returns>视图</returns>
		public DataView GetView()
		{
			XmlDataBase xml = new XmlDataBase();
			DataView dv = null;
			try
			{				
				xml.StrDataFile = Config.DataFile;
				xml.StrFilter = this.strFilter;
				dv = xml.SelectView();
				return dv;
			}
			catch(Exception ee)
			{
				Log log = new Log();
				log.StrUser = "<a target="_blank" href="http://www.zhlw.com/" class="UBBWordLink">系统</a>";
				log.StrDepartment = "获取视图";
				log.StrFileName = "XmlBook.Component.MdlDataManage.cs";
				log.StrDescription = ee.Message;
				log.WriteLog();
				return dv;
			}
			finally
			{				
				xml.Clear();
			}
		}
	}
}

希望通过上面的例子能给大家操作XML文件提供一点点的借鉴。对于XML文件操作的连载就先到这里。如果大家觉得对你有些帮助。请给我鼓下掌。
我也是刚学习的菜鸟，很多想法、做法都很幼稚，高手不要取笑哦。
文中提到的我写的一个XML留言本，如果谁有需要原代码的，请跟我联系，我没有空间可以上传，大家可以给我发邮件：outrace@soueast-motor.com。多交流

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