ASP.NET MVC3 user membership provider. The specified membership provider name is invalid.

Question

I am implementing a custom membership provider and everything seems smooth until I create a MembershipUser object. At this point, I get an error message:

The specified membership provider name is invalid. Parameter Name: ProviderName

The web.configmembership key

<membership defaultProvider="MembersProvider">
  <providers>
    <clear/>
    <add name="MembersProvider" type="Members.Providers.MembersProvider" connectionStringName="ApplicationServices"
         enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" requiresUniqueEmail="false"
         maxInvalidPasswordAttempts="5" minRequiredPasswordLength="6" minRequiredNonalphanumericCharacters="0" passwordAttemptWindow="10"
         applicationName="DeviceDatabase" />
  </providers>
</membership>

When creating the MembershipUser object from my user class User:

    public static MembershipUser ToMembershipUser(User user)
    {
        MembershipUser member = new MembershipUser
            ("MembersProvider"
            , user.Name
            , user.Id
            , user.EmailAddress
            , user.PasswordQuestion
            , user.Comment
            , user.IsApproved
            , user.IsLockedOut
            , user.DateCreated
            , user.LastLoginDate ?? DateTime.MinValue
            , user.LastActivityDate ?? DateTime.MinValue
            , user.LastPasswordChangedDate ?? DateTime.MinValue
            , user.LastLockoutDate ?? DateTime.MinValue
            );

        return member;
    }

(I understand that I could just inherit my User class from MembershipUser, but it is already part of the existing class hierarchy. I sincerely think this is the first time I have encountered the legitimate need for multiple inheritance!)

, new MembershipUser(...) providerName , web.config, , , , .

?

, , .

Edit , , , WAP.

System.Web.Security.Membership.Provider VS2010:

>eval System.Web.Security.Membership.Provider
{Members.Providers.MembersProvider}
    [Members.Providers.MembersProvider]: {Members.Providers.MembersProvider}
    base {System.Configuration.Provider.ProviderBase}: {Members.Providers.MembersProvider}
    ApplicationName: null
    EnablePasswordReset: true
    EnablePasswordRetrieval: false
    MaxInvalidPasswordAttempts: 5
    MinRequiredNonAlphanumericCharacters: 0
    MinRequiredPasswordLength: 6
    PasswordAttemptWindow: 10
    PasswordFormat: Function evaluation was aborted.
    PasswordStrengthRegularExpression: Cannot evaluate expression because debugging information has been optimized away .
    RequiresQuestionAndAnswer: Cannot evaluate expression because debugging information has been optimized away .
    RequiresUniqueEmail: Cannot evaluate expression because debugging information has been optimized away .

2

, , - , , . . , , , , .

Answer 1

, , :

Membership.Provider

Membership.Providers

- User MemberhipUser, , : -)

Answer 2

Memberhip.Provider.Name,

    public static MembershipUser GetUserFromEntity(this UserEntity userEntity)
    {
        return new MembershipUser(
                Membership.Provider.Name, 
                userEntity.Username,
                userEntity.PartitionKey,
                userEntity.Email,
                userEntity.PasswordQuestion,
                userEntity.Comment,
                userEntity.IsApproved,
                userEntity.IsLockedOut,
                userEntity.CreationDate,
                userEntity.LastLoginDate,
                userEntity.LastActivityDate,
                userEntity.LastPasswordChangedDate,
                userEntity.LastLockedOutDate
            );
    }