Question

I have the following code to zip all the files and then save it to the harddisk. I want zip all the files (this is done) and then attach the zip file to the Response stream so that the user have the option to save it!

protected void DownloadSelectedFiles_Click(object sender, EventArgs e)         {             string path = String.Empty;             string zipFilePath = @'C:\MyZipFile.zip';              ZipOutputStream zipStream = new ZipOutputStream(File.Create(zipFilePath));             byte[] buffer = new byte[4096];              foreach (GridViewRow row in gvFiles.Rows)             {                 bool isSelected = (row.FindControl('chkSelect') as CheckBox).Checked;                  if (isSelected)                 {                     path = (row.FindControl('lblUrl') as Label).Text;                      ZipEntry entry = new ZipEntry(Path.GetFileName(path));                     entry.DateTime = DateTime.Now;                      zipStream.PutNextEntry(entry);                      using (FileStream fs = File.OpenRead(path))                     {                         int sourceBytes;                         do                         {                             sourceBytes = fs.Read(buffer, 0, buffer.Length);                             zipStream.Write(buffer, 0, sourceBytes);                         } while (sourceBytes > 0);                     }                 }             }               zipStream.Finish();             zipStream.Close();              Response.ContentType = 'application/x-zip-compressed';             Response.AppendHeader('Content-Disposition', 'attachment; filename=SS.zip');             Response.WriteFile(zipFilePath);             Response.End();          } 

Answer 1

I blogged about sending files like this a while ago. You might find something usefull in there.

http://absolutecobblers.blogspot.com/2008/02/downloading-and-deleting-temporary.html