Display custom error page when file upload exceeds allowed size in ASP.NET MVC

Question

My main issue is that I want to display an custom error page when an uploaded file exceeds allowed size (maxRequestLength in web.config).

When the big file is upload

Answer 1

You need to make a custom HttpHandler that will do this for you. ASP.NET will automatically kill the connection if the upload size is too large (as you found out).