Creating our Custom MembershipProvider Class - Creating a Custom Membership Provider and Membership User utilizing a Data Set Table Adapter - Step 5
We want to now create our Custom Membership Provider class. Right click the ProviderClasses folder that you created in Step 1 and select "Add New Item."
Select the "Class" template, name the new provider "SSSMembershipProvider" (or whatever name you desire) and select "Add."
A new class named "SSSMembershipProvider" will open. Type "Inherits MembershipProvider" following the "Public Class SSSMembershipProvider" declaration.