資料集轉xml

XmlDatasetConvert 該類提供了四種方法：

1、将xml對象内容字元串轉換為DataSet

2、将xml檔案轉換為DataSet

3、将DataSet轉換為xml對象字元串

4、将DataSet轉換為xml檔案

XmlDatasetConvert.cs

using System;

using System.Collections.Generic;

using System.Text;

using System.Data;

using System.IO;

using System.Xml;

namespace XmlDesign

{

    class XmlDatasetConvert

    {

        //将xml對象内容字元串轉換為DataSet

        public static DataSet ConvertXMLToDataSet(string xmlData)

        {

            StringReader stream = null;

            XmlTextReader reader = null;

            try

            {

                DataSet xmlDS = new DataSet();

                stream = new StringReader(xmlData);

                //從stream裝載到XmlTextReader

                reader = new XmlTextReader(stream);

                xmlDS.ReadXml(reader);

                return xmlDS;

            }

            catch (System.Exception ex)

            {

                throw ex;

            }

            finally

            {

                if (reader != null) reader.Close();

            }

        }

        //将xml檔案轉換為DataSet

        public static DataSet ConvertXMLFileToDataSet(string xmlFile)

        {

            StringReader stream = null;

            XmlTextReader reader = null;

            try

            {

                XmlDocument xmld = new XmlDocument();

                xmld.Load(xmlFile);

                DataSet xmlDS = new DataSet();

                stream = new StringReader(xmld.InnerXml);

                //從stream裝載到XmlTextReader

                reader = new XmlTextReader(stream);

                xmlDS.ReadXml(reader);

                //xmlDS.ReadXml(xmlFile);

                return xmlDS;

            }

            catch (System.Exception ex)

            {

                throw ex;

            }

            finally

            {

                if (reader != null) reader.Close();

            }

        }

        //将DataSet轉換為xml對象字元串

        public static string ConvertDataSetToXML(DataSet xmlDS)

        {

            MemoryStream stream = null;

            XmlTextWriter writer = null;

            try

            {

                stream = new MemoryStream();

                //從stream裝載到XmlTextReader

                writer = new XmlTextWriter(stream, Encoding.Unicode);

                //用WriteXml方法寫入檔案.

                xmlDS.WriteXml(writer);

                int count = (int)stream.Length;

                byte[] arr = new byte[count];

                stream.Seek(0, SeekOrigin.Begin);

                stream.Read(arr, 0, count);

                UnicodeEncoding utf = new UnicodeEncoding();

                return utf.GetString(arr).Trim();

            }

            catch (System.Exception ex)

            {

                throw ex;

            }

            finally

            {

                if (writer != null) writer.Close();

            }

        }

        //将DataSet轉換為xml檔案

        public static void ConvertDataSetToXMLFile(DataSet xmlDS,string xmlFile)

        {

            MemoryStream stream = null;

            XmlTextWriter writer = null;

            try

            {

                stream = new MemoryStream();

                //從stream裝載到XmlTextReader

                writer = new XmlTextWriter(stream, Encoding.Unicode);

                //用WriteXml方法寫入檔案.

                xmlDS.WriteXml(writer);

                int count = (int)stream.Length;

                byte[] arr = new byte[count];

                stream.Seek(0, SeekOrigin.Begin);

                stream.Read(arr, 0, count);

                //傳回Unicode編碼的文本

                UnicodeEncoding utf = new UnicodeEncoding();

                StreamWriter sw = new StreamWriter(xmlFile);

                sw.WriteLine("<?xml version=\"1.0\" encoding=\"utf-8\"?>");

                sw.WriteLine(utf.GetString(arr).Trim());

                sw.Close();

            }

            catch( System.Exception ex )

            {

                throw ex;

            }

            finally

            {

                if (writer != null) writer.Close();

            }

        }

    }

}

使用示例

using System;

using System.Collections.Generic;

using System.Text;

using System.Xml;

using System.Data;

namespace XmlDesign

{

    class Program

    {

        static void Main(string[] args)

        {

            DataSet ds = new DataSet();

            轉換一個XML檔案(本地\網絡均可)為一個DataSet#region 轉換一個XML檔案(本地\網絡均可)為一個DataSet

            //http://news.baidu.com/n?cmd=1&class=sportnews&tn=rss

            //F:\study\001CSharp_Study\002Source\XmlDesign\XmlDesign\Save_Plan.xml

            ds = XmlDatasetConvert.ConvertXMLFileToDataSet(@"​​​http://news.baidu.com/n?cmd=1&class=sportnews&tn=rss​​​");

            Console.WriteLine("資料集名為\"{0}\",包含{1}個表", ds.DataSetName, ds.Tables.Count);

            foreach(DataTable dt in ds.Tables)

            {

                PrintTableName(dt.TableName);

            };

            #endregion

            構造一個DataSet,并轉換為XML字元串#region 構造一個DataSet,并轉換為XML字元串

            DataSet ds1 = new DataSet();

            DataTable dt1 = new DataTable();

            dt1.TableName = "test";

            dt1.Columns.Add("id");

            dt1.Columns.Add("name");

            dt1.Rows.Add("i001", "hekui");

            dt1.Rows.Add("i002", "liyang");

            DataTable dt2 = new DataTable();

            dt2.TableName = "test1";

            dt2.Columns.Add("bookid");

            dt2.Columns.Add("bookname");

            dt2.Rows.Add("b001", "書本1");

            dt2.Rows.Add("b002", "書本2");

            ds1.Tables.Add(dt1);

            ds1.Tables.Add(dt2);

            ds1.DataSetName = "方案";

            string xmlOut = XmlDatasetConvert.ConvertDataSetToXML(ds1);

            #endregion

            轉換一個XML字元串為一個DataSet#region 轉換一個XML字元串為一個DataSet

            DataSet ds2 = new DataSet();

            ds2 = XmlDatasetConvert.ConvertXMLToDataSet(xmlOut);

            Console.WriteLine("資料集名為\"{0}\",包含{1}個表", ds2.DataSetName, ds2.Tables.Count);

            foreach (DataTable dt in ds2.Tables)

            {

                PrintTableName(dt.TableName);

            };

            #endregion

            轉換一個Dataset為一個XML檔案#region 轉換一個Dataset為一個XML檔案

            XmlDatasetConvert.ConvertDataSetToXMLFile(ds2, "c:\\adadsda1.xml");

            #endregion

            Console.ReadLine();

        }

        private static void PrintTableName(string tableName)

        {

            Console.WriteLine(tableName);

        }

    }

}

---------------------------------new

public static string SerializeDataTableXml(DataTable pDt, string pRoot, string pTag)

{

try

{

int strColCount = pDt.Columns.Count;

DataColumnCollection dcc = pDt.Columns;