Dataset与二进制流的转换

using System;
using System.Collections.Generic;
using System.Text;
using System.Data;
using System.IO;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Binary;

namespace BaseClientClass
{
    public class XMLClass
    {
        /**/
        /// <summary>
        /// 此方法实现对Dataset的序列化生成二进制流
        /// </summary>
        /// <param name="err"></param>
        /// <returns>dsResult</returns>
        public byte[] DatasetToBinary( System.Data.DataSet dsResult,ref string err)
        {
            //ClearCommand();
            //DataSet dsResult = new DataSet();
            byte[] bArrayResult = null;
            try
            {
                //dsResult = SqlHelper.ExecuteDataset(m_currentConnectionString, CommandType.Text, m_commandStringBuilder.ToString());
                // 上面都是取数据的,无需关心.二进制压缩数据集是下面一小段
                   dsResult.RemotingFormat = SerializationFormat.Binary;
                MemoryStream ms = new MemoryStream();
                IFormatter bf = new BinaryFormatter();
                bf.Serialize(ms, dsResult);
                bArrayResult = ms.ToArray();
                ms.Close();
            }
            catch (Exception ee)
            {
                err = ee.ToString();
            }
            return bArrayResult;
        }

        /**/
        /// <summary>
        /// 此方法实现从二进制流还原Dataset数据
        /// </summary>
        /// <returns></returns>
        public DataSet BinaryToDataset(byte[] bUserData)
        {
            if (bUserData == null)
            {
                //MessageBox.Show("二进制数据流为空");
                //err = "";
                return null;
            }
            // 反序列化的过程
              MemoryStream ms = new MemoryStream(bUserData);
            IFormatter bf = new BinaryFormatter();
            object obj = bf.Deserialize(ms);
            DataSet dsResult = (DataSet)obj;
            ms.Close();
            return dsResult;
        }

    }
}