Resolve "Maximum request length exceeded" and FileUpload single upload.

I am using Visual Studio 2010/ASP.NET/C-Sharp website. I basically had an ASP.NET FileUpload control, for which I needed to cater the exception thrown for the following message:- Maximum request length exceeded. The limitations are that I need to just restrict the user to upload one file in all because I have save the other details from some text-boxes into DB. The maximum file size setting is set in the web.config as follows:- <system.webServer>     <security>           <requestFiltering>         <requestLimits maxAllowedContentLength="41943040"/>         </requestFiltering>     </security> </system.webServer> And <system.web>     <httpRuntime maxRequestLength="40960" requestV ...