I've built a DotNetZip ZipFile with several entries. I'd like to convert it to a byte array so I can download it using the download construct below.
Using wrkZip As New ZipFile
'----- create zip, add memory stream----------
For n As Integer = 0 To wrkAr.Count - 1
wrkFS = wrkAr(n)
wrkZip.AddEntry(wrkFS.FileName, wrkFS.ContentStream)
Next
dim wrkBytes() as Byte
dim wrkFileName as string = "Test.txt"
===> wrkBytes = ConvertToByteArray(wrkZip) <====
context.Response.Clear()
context.Response.ContentType = "application/force-download"
context.Response.AddHeader("content-disposition", "attachment; filename=" & wrkFileName)
context.Response.BinaryWrite(wrkBytes)
wrkBytesInStream = Nothing
context.Response.End()
I recognize that there is a ZipFile method for this:
wrkZip.Save(context.Response.OutputStream)
However, I've got a difficult bug in using that, described here:
DotNetZip download works in one site, not another
so I'm looking for a short term workaround. The short story on the bug is that the the ZipFile writes to disk fine, and downloads fine in a very similar website; it just doesn't work in the case I need it to right now.
So, how to convert a DotNetZip ZipFile to a byte array? I've looked at other answers however they don't describe this particular case of converting a whole, loaded ZipFile.
Use a
MemoryStream
to get the contents into a byte array: