Blocking - TransmitFile Causes Site To Block?
Jun 29, 2010
Whenever I use TransmitFile to send a file, the sirte becomes blocked to the user until the file completes. IOW, the user cannot navigate the site.If the user cancels the transfer, it still blocks until the site either times out OR finishes sending the data. I can't tell which, but I know if for example I cancel a 30MB file immediately after starting the download, it takes longer to recover than a 10 MB file.Here is the relevant code:
Response.ContentType = "application/octet-stream";
Response.AppendHeader("Content-Disposition", contdisp);
Response.AddHeader("Content-Length", new FileInfo(fullfilename).Length.ToString());
Response.TransmitFile(fullfilename);
Response.Flush();
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