How to increase the max upload file size in ASP.NET?

Question

I have a form that excepts a file upload in ASP.NET. I need to increase the max upload size to above the 4 MB default.

I have found in certain places referencing the

Answer 1

Max file size can be restricted to a single MVC Controller or even to an Action.
web.config tag can be used for this:

Or you can add these entries in area's own web.config.