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标题: C#将DataSet转成Xml的方法（转字符串和文件两种） [打印本页]

作者: 站长苏飞 时间: 2013-8-16 16:16
标题: C#将DataSet转成Xml的方法（转字符串和文件两种）
方法如下，
大家看看吧，
很方便的
[code=csharp] //将DataSet转换为xml字符串
public static string ConvertDataSetToXMLFile(DataSet xmlDS, Encoding encoding)
{
      MemoryStream stream = null;
      XmlTextWriter writer = null;
      string result = "<result>-3</result>";
      try
      {
         stream = new MemoryStream();
         //从stream装载到XmlTextReader
         writer = new XmlTextWriter(stream, encoding);
         //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);
         result = "<?xml version=\"1.0\" encoding=\"utf-8\"?>" + encoding.GetString(arr).Trim();
      }
      catch { }
      finally
      {
         if (writer != null) writer.Close();
      }
      return result;
}[/code]
大家自己测试一下吧，挺好用的
下面一个是转成文件的方法
[code=csharp] //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();
         }
      }[/code]
更多关于这块的功能大家可以关注下我的C#基类库，这个类我正在改进中，到时候会有更多的功能开放给大家使用

作者: toby875187 时间: 2013-8-20 11:47
真不错啊，受教了！

作者: Ainy 时间: 2013-9-18 17:33
Thxs 转载了

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