Compress/uncompress : Zip « File Stream « C# / C Sharp

1. C# / C Sharp
2. File Stream
3. Zip

Compress/uncompress

        
namespace Qxado.IO
{
    using System;
    using System.Collections.Generic;
    using System.Text;
    using System.IO;
    using System.IO.Compression;
    using System.Runtime.Serialization.Formatters.Binary;

    /// <summary>
    /// ???/?????????
    /// </summary>
    public class CompressHelper 
    {


        #region ICompress ???


        public byte[] Compress(object obj)
        {
            if (obj == null) return new byte[0];

            MemoryStream ms = new MemoryStream();
            DeflateStream zip = new DeflateStream(ms, CompressionMode.Compress, true);
            try
            {
                BinaryFormatter serializer = new BinaryFormatter();
                serializer.Serialize(zip, obj);
                zip.Close();
                byte[] ary = ms.ToArray();
                ms.Close();
                return ary;
            }
            finally
            {
                zip.Close();
                ms.Close();
            }
        }

        public object DeCompress(byte[] bytes)
        {
            if (bytes == null) return null;
            if (bytes.Length == 0) return null;

            MemoryStream ms = new MemoryStream(bytes);
            DeflateStream UnZip = new DeflateStream(ms, CompressionMode.Decompress);
            try
            {
                BinaryFormatter serializer = new BinaryFormatter();
                object obj = serializer.Deserialize(UnZip);
                UnZip.Close();
                ms.Close();
                return obj;
            }
            finally
            {
                UnZip.Close();
                ms.Close();
            }
        }

        #endregion
    }
}

   
    
    
    
    
    
    
    
  

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