ASP.net自定义成员资格用户MembershipUser类

sp;                      ByVal isApproved As Boolean, _
                                     ByVal providerUserKey As Object, _
                                     ByRef status As MembershipCreateStatus) _
                          As MembershipUser
    Return Me.CreateUser(username, password, email, _
                         passwordQuestion, passwordAnswer, _
                         isApproved, providerUserKey, False, "", status)
End Function

''
'' OdbcMembershipProvider.CreateUser -- returns OdbcMembershipUser
''

Public Overloads Function CreateUser(ByVal username As String, _
                                     ByVal password As String, _
                                     ByVal email As String, _
                                     ByVal passwordQuestion As String, _
                                     ByVal passwordAnswer As String, _
                                     ByVal isApproved As Boolean, _
                                     ByVal providerUserKey As Object, _
               &n