I have an existing ASP.NET WebForms 3.0 application that works just fine. I upgraded it to ASP.NET 4 and it still works great, but now I want to add some ASP.NET MVC pages to it. I don't want to rewrite the application.
Any suggestions? Can I mix them? How to work it? Any tutorials for me?
You have to mention this line of code in the Global.asax file in the MVC application.
This disables the MVC routing for the files of extension .aspx
Take a look at Scott Hanselman's blog article on this very topic:
Integrating ASP.NET MVC 3 into existing upgraded ASP.NET 4 Web Forms applications