Create Zip file using ASP.Net

This program will create Zip file from your ordinary file.

using System;

using System.Data;

using System.Configuration;

using System.Collections;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

using System.IO;

using System.IO.Compression;

using System.IO.IsolatedStorage;

public partial class Directory_compress : System.Web.UI.Page

{

    public void Compress(FileInfo fi)

    {

        // Get the stream of the source file.

        using (FileStream inFile = fi.OpenRead())

        {

            // Prevent compressing hidden and already compressed files.

            if ((File.GetAttributes(fi.FullName) & FileAttributes.Hidden)

                    != FileAttributes.Hidden & fi.Extension != ".gz")

            {

                // Create the compressed file.

                using (FileStream outFile = File.Create(fi.FullName + ".gz"))

                {

                    using (GZipStream Compress = new GZipStream(outFile,

                            CompressionMode.Compress))

                    {

                        // Copy the source file into the compression stream.

                        byte[] buffer = new byte[4096];

                        int numRead;

                        while ((numRead = inFile.Read(buffer, 0, buffer.Length)) != 0)

                        {

                            Compress.Write(buffer, 0, numRead);

                        }

                        Response.Write("Compressed From"+ fi.Name+ fi.Length.ToString()+"<br>");

                        Response.Write("Compress To"+ outFile.Length.ToString()+"<br>");

                    }

                }

            }

        }

    }

    public void Decompress(FileInfo fi)

    {

        // Get the stream of the source file.

        using (FileStream inFile = fi.OpenRead())

        {

            // Get original file extension, for example "doc" from report.doc.gz.

            string curFile = fi.FullName;

            string origName = curFile.Remove(curFile.Length - fi.Extension.Length);

            //Create the decompressed file.

            using (FileStream outFile = File.Create(origName))

            {

                using (GZipStream Decompress = new GZipStream(inFile,

                        CompressionMode.Decompress))

                {

                    //Copy the decompression stream into the output file.

                    byte[] buffer = new byte[4096];

                    int numRead;

                    while ((numRead = Decompress.Read(buffer, 0, buffer.Length)) != 0)

                    {

                        outFile.Write(buffer, 0, numRead);

                    }

                    Response.Write("Decompressed: {0}"+ fi.Name);

                }

            }

        }

    }

    protected void Page_Load(object sender, EventArgs e)

    {

        // Path to directory of files to compress and decompress.

        string dirpath = "D:\\myfolder";

        DirectoryInfo di = new DirectoryInfo(dirpath);

        // Compress the directory's files.

        foreach (FileInfo fi in di.GetFiles())

        {

            Compress(fi);

        }

        // Decompress all *.gz files in the directory.

        foreach (FileInfo fi in di.GetFiles("*.gz"))

        {

            Decompress(fi);

        }

    }

}