Code Reference / Zip Samples

How to use SharpZipLib to work with Zip files

These samples try to cover the range of situations you will encounter. You may need to combine parts of each sample for your application.

General usage

• Create a Zip with full control over content
• Create a Zip from/to a memory stream or byte array
• Unpack a Zip with full control over the operation
• Unpack a zip using ZipInputStream (eg for Unseekable input streams)

Specific usage

• Unpack a Zip, including embedded zips, and re-pack into a new zip or memorystream
• Download and Unpack a zip from an FTP server with recovery
• Create a Zip as a browser download attachment in IIS

Short examples

Create a Zip from a HTML string (C#)

string htmlData = ...

using (var fs = File.Create("html-archive.zip"))
using (var outStream = new ZipOutputStream(fs))
{
    outStream.PutNextEntry(new ZipEntry("content.html"));

    using (var sw = new StreamWriter(outStream))
    {
            sw.Write(htmlData);
    }
}

Create a Zip from a byte array (C#)

var dataBytes = new byte[] { 0x49, 0xe2, 0x9d, 0xa4, 0x5a, 0x49, 0x50 };

using (var fs = File.Create("data.zip"))
using (var outStream = new ZipOutputStream(fs))
{
    outStream.PutNextEntry(new ZipEntry("data.bin"));
    outStream.Write(dataBytes);
}