Where is my abstract base MembershipProvider?

Question

I get that the MembershipProvider is in the System.Web.Security namespace. I have added a reference System.Web in my project, I've added a using System.Web.Security directive in my .cs file - but as you can see, VS2010 does not believe me:

The type or namespace name 'MembershipProvider' could not be found
(are you missing a using directive or an assembly reference?)

What am I missing here?

Answer 1

You need to add a reference to System.Web.ApplicationServices.dll.

This is mentioned in the MembershipProvider help:

Namespace:  System.Web.Security
Assembly:  System.Web.ApplicationServices (in System.Web.ApplicationServices.dll)