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

        public override bool    RequiresUniqueEmail         { get { return _RequiresUniqueEmail; } }

        public override MembershipPasswordFormat PasswordFormat { get { return _PasswordFormat; }}
        public override int MaxInvalidPasswordAttempts { get { return _MaxInvalidPasswordAttempts; } }

        public override int PasswordAttemptWindow { get { return _PasswordAttemptWindow; } }

        public override int MinRequiredPasswordLength
        {
            get { return _MinRequiredPasswordLength; }
        }

        public override int MinRequiredNonAlphanumericCharacters
        {
            get { return _MinRequiredNonalphanumericCharacters; }
        }

        public override string PasswordStrengthRegularExpression
        {
            get { return _PasswordStrengthRegularExpression; }
        }

        public override string ApplicationName
        {
            get { return _AppName; }
            set
            {
                if (String.IsNullOrEmpty(value))
                    throw new ArgumentNullException("value");

                if (value.Length > 256)
                    throw new ProviderException( SR.GetString( SR.Provider_application_name_too_long ) );
                _AppName = value;
            }
        }

        private string    _sqlConnectionString;
        private bool      _EnablePasswordRetrieval;
        private bool