Writing to ZipArchive using the HttpContext OutputStream

Question

I\'ve been trying to get the \"new\" ZipArchive included in .NET 4.5 (System.IO.Compression.ZipArchive) to work in a ASP.NET site. But it seems like it doesn\'t

Answer 1

An simplified version of svick's answer for zipping a server-side file and sending it via the OutputStream:

using (var outputStream = new PositionWrapperStream(Response.OutputStream))
using (var archive = new ZipArchive(outputStream, ZipArchiveMode.Create, false))
{
    var entry = archive.CreateEntryFromFile(fullPathOfFileOnDisk, fileNameAppearingInZipArchive);
}

(In case this seems obvious, it wasn't to me!)