Question

I am using Entity Framework as part of a school/course project where users should be allowed to upload files or directories. If it’s a directory it has to be zipped(I got hold of DotNetZip) but I am not sure of how convert the zip file into a byte[]. Also should I store the zip in the temp directory and delete it once it has been saved?

Answer 1

According to http://dotnetzip.codeplex.com/wikipage?title=CS-Examples&referringTitle=Examples, you can save the zip file to a memory stream without writing it to any temporary file:

var stream = new System.IO.MemoryStream();

using (ZipFile zip = new ZipFile())
{
    zip.AddFile("ReadMe.txt");
    zip.AddFile("7440-N49th.png");
    zip.AddFile("2008_Annual_Report.pdf");        
    zip.Save(stream);
}

byte[] data = stream.ToArray();