序列化

   #region 序列化

        /// <summary>
        /// 二进制的方式序列化DataTable
        /// </summary>
        /// <param name="o">需要转换的对象</param>
        /// <returns>二进制数组</returns>
        private static byte[] GetBinaryFormatDataTable(DataTable dt)
        {
            MemoryStream memory = new MemoryStream();//使用内存流来存这些byte[] 
            BinaryFormatter formatter = new BinaryFormatter();
            formatter.Serialize(memory, dt);
            byte[] buff = memory.GetBuffer(); //这里就可你想要的byte[],可以使用它来传输 
            memory.Close();
            memory.Dispose();
            return buff;
        }
        /// <summary>
        /// 反序列化byteDataTable
        /// </summary>
        /// <param name="bt">二进制数据</param>
        /// <returns>DataTable</returns>
        private static DataTable RetrieveDataTable(byte[] bt)
        {
            MemoryStream memory = new MemoryStream();//使用内存流来存这些byte[] 
            BinaryFormatter formatter = new BinaryFormatter();
            return (DataTable)formatter.Deserialize(new MemoryStream(bt)); //byte[]转回的datatable 
        }

        /// <summary>
        /// DataSet序列化
        /// </summary>
        /// <param name="ds">需要序列化的DataSet</param>
        /// <returns></returns>
        private static byte[] GetBinaryFormatDataSet(DataSet ds)
        {

            MemoryStream memStream = new MemoryStream();   //创建内存流

            IFormatter formatter = new BinaryFormatter();//产生二进制序列化格式

            ds.RemotingFormat = SerializationFormat.Binary;//指定DataSet串行化格式是二进制

            formatter.Serialize(memStream, ds);//串行化到内存中

            byte[] binaryResult = memStream.ToArray();//将DataSet转化成byte[]

            memStream.Close();//清空和释放内存流
            memStream.Dispose();
            return binaryResult;
        }
        /// <summary>
        /// DataSet反序列化
        /// </summary>
        /// <param name="binaryData">需要反序列化的byte[]</param>
        /// <returns></returns>
        private static DataSet RetrieveDataSet(byte[] binaryData)
        {

            MemoryStream memStream = new MemoryStream(binaryData);//创建内存流

            IFormatter formatter = new BinaryFormatter();//产生二进制序列化格式

            object obj = formatter.Deserialize(memStream);//反串行化到内存中
            //类型检验
            if (obj is DataSet)
            {
                DataSet dataSetResult = (DataSet)obj;
                return dataSetResult;
            }
            else
            {
                return null;
            }
        }

        #endregion 序列化