BetterMembership.Web.BetterMembershipProvider.ValidateProviderUserKey C# (CSharp) Метод

        private bool ValidateProviderUserKey(object providerUserKey, bool allowNull)
        {
            if (allowNull)
            {
                return providerUserKey == null || providerUserKey is int;
            }

            return providerUserKey is int && (int)providerUserKey > 0;
        }