Question

How can I add the MembershipProvider class to my .NET 4.0 project in VS 2010 B2?

I want to customize a MembershipProvider, but I cannot without adding this class. Please guide me through this process.

Answer 1

Interesting. However, build errors are your friend ;)

Attempting to build a class library built as you describe, I get the following build error:

The type name MembershipProvider could not be found. This type has been forwarded to assembly System.Web.ApplicationServices, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35 . Consider adding a reference to that assembly.

Following the instructions (adding a reference to System.Web.ApplicationServices) allows me to carry on as expected.

Answer 2

The MembershipProvider abstract class is part of the System.Web.ApplicationServices namespace in the .net 4.0 Framework. Add a reference to that assembly and it should solve the issue.

Answer 3

On my case, I am using Visual Studio 2019, I need to add both of these:

System.Web.ApplicationServices

and

System.Configuration

In order to build it successfully upon inheriting MembershipProvider to create my own MyMembershipProvider class.

Answer 4

There is an reference not set oder an missing using namespace is System.Web.Security Check if assembly System.Web.ApplicationServices.dll is referenced

for more info checkt out MSDN

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