System.Web.Security Namespace
.NET Framework version 2.0
A collection of objects that inherit the MembershipProvider abstract class.
The membership providers for an application are exposed as a read-only MembershipProviderCollection by the Providers property of the Membership class.
You can access a specific membership provider in the collection by name and cast it as the specific provider type, such as SqlMembershipProvider. This enables you to manage membership information from multiple data stores in a single application as well as access custom members of a membership provider that are not part of the MembershipProvider abstract class.
Membership Class MembershipProvider Class