Combining MVC and WebForms

The two most likely scenarios in which you’d want to combine ASP.NET MVC and WebForms technologies in a single web application are the following: You’re building an MVC application, but also want to use WebForms technologies in it: Perhaps because you’ve inherited WebForms pages, web controls, or user controls from earlier projects and can’t spare the time to reimplement them using MVC technology. You have an existing WebForms application, and want to upgrade it to support MVC code: Perhaps because you’d like to move toward MVC-style development, but need to migrate your existing project piecemeal. (You can’t always rewrite the whole thing from scratch.)