Question

The following method, based on code in this question, shows a file download dialog box in the browser, but then the download never starts (it stays at 0%):

protected void lnkExport_Click(object sender, EventArgs e) {
  var bytes = Encoding.ASCII.GetBytes(SelectRecords()); //Data to be downloaded
  Response.Clear();
  Response.ContentType = "application/vnd.ms-excel";
  Response.AddHeader("Content-Disposition", "attachment; filename=\"test.xls\"");
  using (var stream = new MemoryStream(bytes)) {
    Response.AddHeader("Content-Length", stream.Length.ToString());
    stream.WriteTo(Response.OutputStream);
  }
}

Any idea what’s up?

Answer 1

Your code worked fine for me but you may want to try adding this as the last line of your click handler:

Response.End();