asp.net中XML文档的写入和读取，以及转化数据集相关实例

 写XML文档
using System;

using System.Collections;

using System.Configuration;

using System.Data;

using System.Linq;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.HtmlControls;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Xml.Linq;

using System.Xml;

using System.Text;



public partial class _20110327XML_XMLWriter : System.Web.UI.Page

{

    protected void Page_Load(object sender, EventArgs e)

    {
    }

    public string StrXml

    {

        get {

            return Convert.ToString(ViewState["StrXml"]);
        }

        set {

            ViewState["StrXml"] = value;
        }
    }
    protected void btnXMLWriter_Click(object sender, EventArgs e)

    {        //生成XmlTextWriter类的实例

        XmlTextWriter writer = new XmlTextWriter(Server.MapPath("book.xml"), Encoding.UTF8);

        writer.WriteStartDocument();   //开始XML文档写入

        writer.WriteStartElement("BOOKS");   //开始写<BOOKS>元素

        writer.WriteStartElement("BOOK");    //开始写<BOOK>元素

        //下面开始写<BOOK>元素里面的底层元素

        if (this.title.Text == "")

        {
            writer.WriteElementString("Title", "none");
        }

        else
        {
            writer.WriteElementString("Title", this.title.Text.Trim());
        }

        if (this.author.Text == "")
        {
            writer.WriteElementString("Title", "none");
        }
        else
        {
            writer.WriteElementString("Title", this.author.Text.Trim());
        }

        if (this.press.Text == "")

        {
            writer.WriteElementString("Title", "none");
        }
        else
        {
            writer.WriteElementString("Title", this.press.Text.Trim());
        }
        if (this.pages.Text == "")
        {
            writer.WriteElementString("Title", "none");
        }

        else
       {
           writer.WriteElementString("Title", this.pages.Text.Trim());
        }

        if (this.price.Text == "")
        {
            writer.WriteElementString("Title", "none");
        }
        else
        {
           writer.WriteElementString("Title", this.price.Text.Trim());
        }

        writer.WriteEndElement();    //结束<BOOK>元素

        writer.WriteStartElement("AuthorInfo");    //开始写<AuthorInfo>元素

        writer.WriteAttributeString("age", "40");

        writer.WriteElementString("Address", "浙江杭州");

        writer.WriteElementString("Postalcode", "310015");

        writer.WriteEndElement();

        writer.WriteEndElement();

        writer.WriteEndDocument();

        writer.Close();
        Response.Redirect("book.xml");

    }

}

读XML文档 

using System;

using System.Collections;

using System.Configuration;

using System.Data;

using System.Linq;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.HtmlControls;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Xml.Linq;

using System.Text;

using System.Xml;

 public partial class _20110327XML_XMLReader : System.Web.UI.Page

{
    protected void Page_Load(object sender, EventArgs e)
    {
    }

    protected void btnXMLReader_Click(object sender, EventArgs e)

    {
      string url = "D:\\xiongzaiqiren\\Visual Studio 2008\\Projects\\XXH_LogManager\\XXH_LogManager\\20110327XML\\book.xml";

        XmlTextReader reader = new XmlTextReader(url);

        while (reader.Read())

        {

            if (reader.HasAttributes)

            {

                Response.Write("数据段为：" + reader.NodeType.ToString() + "；" + reader.Name + "；" + reader.Value + "<br />");

                Response.Write("该数据段的属性有：");

                for (int i = 0; i < reader.AttributeCount - 1; i++)

                {

                    reader.MoveToAttribute(i);

                    Response.Write(reader.GetAttribute(i) + "；");

                }

                Response.Write("<br />");

                reader.MoveToElement();

            }

            reader.MoveToElement();

        }

        reader.Close();

    }





    //以下是转化XML方法



    #region 获得Xml文档对象的方法

    /// <summary>

    /// 获得Xml文档对象的方法

    /// </summary>

    /// <param name="fullFileName">XML完整文件名</param>

    /// <returns>Xml文档对象</returns>

    public static XmlDocument GetXmlDocument(string fullFileName)

    {
        try

        {

            XmlDocument doc = new XmlDocument();

            doc.Load(fullFileName);

            return doc;
        }

        catch
        {

           throw new Exception("XML文件" + fullFileName + "不存在或拒绝访问。");
       }

    }

    /// <summary>

    /// 将XmlDocument转化为DataSet

    /// </summary>

    /// <param name="doc">xml文档对象</param>

    /// <returns></returns>

    public static DataSet GetDataSetByXmlDocument(XmlDocument doc)

    {

        XmlNodeReader reader = new XmlNodeReader(doc);

        DataSet ds = new DataSet();

        ds.ReadXml(reader);

        reader.Close();

        return ((ds != null) && (ds.Tables[0].Rows.Count > 0)) ? ds : null;

    }

    #endregion



    #region 根据标记名称获得数据集合的方法

    /// <summary>

    /// 根据标记名称获得数据集合的方法

    /// </summary>

    /// <param name="fileName">XML完整文件名</param>

    /// <param name="tagName">标记名称</param>

    /// <returns>数据集合</returns>

    public static ArrayList GetArrayListByTagName(string fileName, string tagName)

    {

        XmlDocument doc = GetXmlDocument(fileName);

        XmlNodeList nodeList = doc.DocumentElement.GetElementsByTagName(tagName);

        ArrayList al = new ArrayList();

        for (int i = 0; i < nodeList.Count; i++)

        {

            al.Add(nodeList[i].InnerText);

        }

        return al;

    }



    #endregion

}





关于XML转换数据集XMLHelper.cs



using System;

using System.Collections.Generic;

using System.Text;

using System.Collections;

using System.Xml;

using System.Data;



namespace KangHui.Common

{

    /// <summary>

    /// 对XML文件进行处理的类

    /// </summary>

    public class XmlHelper

    {

        #region 获得Xml文档对象的方法

        /// <summary>

        /// 获得Xml文档对象的方法

        /// </summary>

        /// <param name="fullFileName">XML完整文件名</param>

        /// <returns>Xml文档对象</returns>

        public static XmlDocument GetXmlDocument(string fullFileName)

        {

            try

            {

                XmlDocument doc = new XmlDocument();

                doc.Load(fullFileName);

                return doc;

            }

            catch

            {

                throw new Exception("XML文件" + fullFileName + "不存在或拒绝访问。");

            }

        }

        #endregion



        #region 根据标记名称获得数据集合的方法

        /// <summary>

        /// 根据标记名称获得数据集合的方法

        /// </summary>

        /// <param name="fileName">XML完整文件名</param>

        /// <param name="tagName">标记名称</param>

        /// <returns>数据集合</returns>

        public static ArrayList GetArrayListByTagName(string fileName, string tagName)

        {

            XmlDocument doc = GetXmlDocument(fileName);

            XmlNodeList nodeList = doc.DocumentElement.GetElementsByTagName(tagName);

            ArrayList al = new ArrayList();

            for (int i = 0; i < nodeList.Count; i++)

            {

                al.Add(nodeList[i].InnerText);

            }

            return al;

        }

        /// <summary>

        /// 将XmlDocument转化为Dataset

        /// </summary>

        /// <param name="doc">xml文档对象</param>

        /// <returns></returns>

        public static DataSet GetDataSetByXmlDocument(XmlDocument doc)

        {

            XmlNodeReader reader = new XmlNodeReader(doc);

            DataSet ds = new DataSet();

            ds.ReadXml(reader);

            reader.Close();

            return ((ds != null) && (ds.Tables[0].Rows.Count > 0)) ? ds : null;

        }

        #endregion

    }

}