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Compress files during upload.

Last post 11-26-2008, 5:13 AM by Allen99. 2 replies.


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11-20-2008, 10:39 PM 46044

Allen99
Joined on 11-21-2008
Posts 3

Compress files during upload.

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Hi there,

I uploaded some files to server and listed them all, each file is a link and can be downloaded via a download.ashx file. But need to click them one by one to download them all. Is there a way to download them all once by compress all them into a zip file? I remembered there is a example of that here using a zip dll but cannot find it any longer.

Thanks.

Allen.

11-21-2008, 10:27 AM 46141 in reply to 46044

cutechat
Joined on 07-22-2004
Posts 2,332

Re: Compress files during upload.

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Allen,

You can download the http://www.codeplex.com/DotNetZip

and then try this code :

<%@ Page Language="C#" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

protected void ButtonDownload_Click(object sender, EventArgs e)
{
if (Uploader1.Items.Count == 0)
return;

  Context.Response.Clear();
  Context.Response.AddHeader("Content-Disposition", "attachment; filename=allfiles.zip");

  Ionic.Utils.Zip.ZipFile file = new Ionic.Utils.Zip.ZipFile(Response.OutputStream);
  foreach (AttachmentItem item in Uploader1.Items)
  {
   if (!item.Visible) continue;
   if (!item.Checked) continue;

   file.AddFileStream(item.FileName, "", item.OpenStream());
  }
  file.Save();

Context.Response.End();
}
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
  <CuteWebUI:UploadAttachments runat="server" ID="Uploader1" />
  <br />
  <asp:Button runat="server" ID="ButtonDownload" Text="DownloadAll" OnClick="ButtonDownload_Click" />
</form>
</body>
</html>

Regards,

Terry

11-26-2008, 5:13 AM 46306 in reply to 46044

Allen99
Joined on 11-21-2008
Posts 3

Re: Compress files during upload.

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It works perfect!

Thanks for that.

Allen.