webproject reference in class lib

In my class lib I am trying to communicate with the app code folder in the
webproject and the classes inside. How can I add the ref?

Hi Pak518,

If I'm following you, you have a class library compiled into a dll. You have
placed a reference to that class library in your web application. You want your
class library to be able to reference classes in your web application?

Let me know if I'm missing something. Generally, you wouldn't want to create any
dependencies in your class library to a web application that's referencing it.
That would create a cross-dependency and your class library would only be able
to function inside your web application. If that were the case, you might as
well just make the functionality that depends upon your web application a part
of your web application.