XML与DataSet的相互转换类

送给大家一个XML与DataSet的相互转换的类:XmlDatasetConvert该类提供了四种网络

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送给大家一个XML与DataSet的相互转换的类: XmlDatasetConvert 该类提供了四种方法： 1、将xml对象内容字符串转换为DataSet 2、将xml文件转换为DataSet 3、将DataSet转换为xml对象字符串 4、将DataSet转换为xml文件

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对象内容字符串转换为DataSet         public static DataSet ConvertXMLToDataSet(string xmlData)         {             StringReader stream = null;             XmlTextReader reader = null;             try             {                 DataSet xmlDS = new DataSet();                 stream = new StringReader(xmlData);                 //从stream装载到XmlTextReader                 reader = new XmlTextReader(stream);                 xmlDS.ReadXml(reader);                 return xmlDS;             }             catch (System.Exception ex)             {                 throw ex;             }             finally             {                 if (reader != null) reader.Close();             }         }

        //将xml文件转换为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);                 //从stream装载到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转换为xml对象字符串         public static string ConvertDataSetToXML(DataSet xmlDS)         {             MemoryStream stream = null;             XmlTextWriter writer = null;

            try             {                 stream = new MemoryStream();                 //从stream装载到XmlTextReader                 writer = new XmlTextWriter(stream, Encoding.Unicode);

                //用WriteXml方法写入文件.                 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转换为xml文件         public static void ConvertDataSetToXMLFile(DataSet xmlDS,string xmlFile)         {             MemoryStream stream = null;             XmlTextWriter writer = null;

            try             {                 stream = new MemoryStream();                 //从stream装载到XmlTextReader                 writer = new XmlTextWriter(stream, Encoding.Unicode);

                //用WriteXml方法写入文件.                 xmlDS.WriteXml(writer);                 int count = (int)stream.Length;                 byte[] arr = new byte[count];                 stream.Seek(0, SeekOrigin.Begin);                 stream.Read(arr, 0, count);

                //返回Unicode编码的文本                 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();

            转换一个XML文件(本地/网络均可)为一个DataSet#region 转换一个XML文件(本地/网络均可)为一个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("数据集名为/"{0}/",包含{1}个表", ds.DataSetName, ds.Tables.Count);             foreach(DataTable dt in ds.Tables)             {                 PrintTableName(dt.TableName);             };             #endregion

            构造一个DataSet,并转换为XML字符串#region 构造一个DataSet,并转换为XML字符串             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", "书本1");             dt2.Rows.Add("b002", "书本2");

            ds1.Tables.Add(dt1);             ds1.Tables.Add(dt2);             ds1.DataSetName = "方案";             string xmlOut = XmlDatasetConvert.ConvertDataSetToXML(ds1);             #endregion

            转换一个XML字符串为一个DataSet#region 转换一个XML字符串为一个DataSet             DataSet ds2 = new DataSet();             ds2 = XmlDatasetConvert.ConvertXMLToDataSet(xmlOut);             Console.WriteLine("数据集名为/"{0}/",包含{1}个表", ds2.DataSetName, ds2.Tables.Count);             foreach (DataTable dt in ds2.Tables)             {                 PrintTableName(dt.TableName);             };             #endregion

            转换一个Dataset为一个XML文件#region 转换一个Dataset为一个XML文件             XmlDatasetConvert.ConvertDataSetToXMLFile(ds2, "c://adadsda1.xml");             #endregion             Console.ReadLine();         }

        private static void PrintTableName(string tableName)         {             Console.WriteLine(tableName);         }     } }