C# - Download Text As A File From A Webpage?

I'm downloading text from a website and I want to have the user be able to save it as a file. So, I have the following code that does just that.

protected void DownloadFile(string fileName, string content)
{
Response.Clear();
Response.ClearContent();
Response.ClearHeaders();
Response.AddHeader("Content-Disposition", "attachment; filename=" + fileName);
Response.ContentType = "text/plain";
Response.Write(content);
Response.End();
}

The problem I am having is that I get an exception after this code runs. I believe it's due to the fact that I call Response.End(). So, every time a user downloads a file it redirects them to the generic error page because all generic exceptions redirect to that page.

how I can write text out to a file and not get this error? If I remove Response.End() I get my text and then the rest of the HttpResponse text, but I don't get the error.