title: How do I get the request data that caused an ASP .NET error
body: <p>I am working on an ASP.NET application on SQL Server 2008. Sometimes users generate errors on the site for various reasons and it would be really useful if I could get the original request that generated the error so that I could replay it or make it part of a test.</p>
  
  <p>I am familiar with the Event viewer to look up an error but I find that the summaries don't give me enough information like "What was the special character they tried to use"?</p>
  
  <p>Is this possible? How would I find out?</p>