自定义asp.net2.0权限提供程序SqlMembershipProvider

bsp;           else
                encodedPasswordAnswer = passwordAnswer;
            if (!SecUtility.ValidateParameter(ref encodedPasswordAnswer, RequiresQuestionAndAnswer, true, false, 128))
            {
                status = MembershipCreateStatus.InvalidAnswer;
                return null;
            }

            if( !SecUtility.ValidateParameter( ref username,true, true, true, 256))
            {
                status = MembershipCreateStatus.InvalidUserName;
                return null;
            }

            if( !SecUtility.ValidateParameter( ref email,
                                               RequiresUniqueEmail,
                                               RequiresUniqueEmail,
                                               false,
                                               256 ) )
            {
                status = MembershipCreateStatus.InvalidEmail;
                return null;
            }

            if( !SecUtility.Valid