title: Using updateprogress while generating a file with Response.write in ASP.NET
body: <p>I am creating an Excel file with <code>Response.write</code> in my C# file and it takes 1-2 mins to create the file. I would like to make use of <code>UpdateProgress</code> to indicate that the file generation is in progress. But when I use <code>UpdateProgress</code>, the file is not getting generated. </p>
  
  <p>Please let me know if I am missing anything here.</p>