ASP.NET - Download as ZIP
Filed in C#, Code Snippets on Dec.08, 2009
DotNetZipLib is one of the best compression/zip libraries for dotnet I found. You can download it from CodePlex.
Here is a snippet which demonstrates how to use DotNetZipLib to zip and force download directly to browser.
ZipFile zip = new ZipFile(); // Add files to zip zip.AddFile(@"C:\blah.jpg", string.Empty); zip.AddFile(@"C:\blee.jpg", string.Empty); // save to memory stream instead of a direct file MemoryStream ms = new MemoryStream(); zip.Save(ms); //convert to bytes byte[] bytes = ms.ToArray(); ms.Flush(); ms.Close(); // Download now Response.Clear(); Response.AddHeader("Content-Disposition", "attachment; filename=myzipfile.zip"); Response.AddHeader("Content-Length", bytes.Length.ToString()); Response.ContentType = "application/octet-stream"; Response.BinaryWrite(bytes);
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