Question

I’m trying to create a program that has the capability of creating a zipped package containing files based on user input.

I don’t need any of those files to be written to the hard drive before they’re zipped, as that would be unnecessary, so how do I create these files without actually writing them to the hard drive, and then have them zipped?

I’m using DotNetZip.

Answer 1

See the documentation here, specifically the example called “Create a zip using content obtained from a stream”:

 using (ZipFile zip = new ZipFile())
  {
    ZipEntry e= zip.AddEntry("Content-From-Stream.bin", "basedirectory", StreamToRead);
    e.Comment = "The content for entry in the zip file was obtained from a stream";
    zip.AddFile("Readme.txt");
    zip.Save(zipFileToCreate);
  }

If your files are not already in a stream format, you’ll need to convert them to one. You’ll probably want to use a MemoryStream for that.