.Net Zip Up files

Question

Whats the best way to zip up files using C#? Ideally I want to be able to seperate files into a single archive.

Answer 1

Have you looked at SharpZipLib?

I believe you can build zip files with classes in the System.IO.Packaging namespace - but every time I've tried to look into it, I've found it rather confusing...

Answer 2

Take a look at this library: http://www.icsharpcode.net/OpenSource/SharpZipLib/

It is pretty comprehensive, it deals with many formats, is open-source, and you can use in closed-source commercial applications.

It is very simple to use:

byte[] data1 = new byte[...];
byte[] data2 = new byte[...];
/*...*/

var path = @"c:\test.zip";
var zip = new ZipOutputStream(new FileStream(path, FileMode.Create))
            {
                IsStreamOwner = true
            }

zip.PutNextEntry("File1.txt");
zip.Write(data1, 0, data1.Length);

zip.PutNextEntry("File2.txt");
zip.Write(data2, 0, data2.Length);

zip.Close();
zip.Dispose();

Answer 3

You can use DotNetZip to archieve this. It´s free to use in any application.

Here´s some sample code:

   try
   {
     using (ZipFile zip = new ZipFile()
     {
       // add this map file into the "images" directory in the zip archive
       zip.AddFile("c:\\images\\personal\\7440-N49th.png", "images");
       // add the report into a different directory in the archive
       zip.AddFile("c:\\Reports\\2008-Regional-Sales-Report.pdf", "files");
       zip.AddFile("ReadMe.txt");
       zip.Save("MyZipFile.zip");
     }
   }
   catch (System.Exception ex1)
   {
     System.Console.Error.WriteLine("exception: " + ex1);
   }

Answer 4

There are a few librarys around - the most popular of which are DotNetZip and SharpZipLib.