BetterMembership.Web.BetterProfileProvider.EnsureSupportedColumns C# (CSharp) Метод

        private void EnsureSupportedColumns()
        {
            if (this.databaseColumns != null)
            {
                return;
            }

            using (var db = this.ConnectToDatabase())
            {
                this.databaseColumns = db.GetColumnsForTable(this.membershipProvider.UserTableName)
                    .Where(columnName => string.Compare(
                                            columnName, 
                                            this.membershipProvider.UserIdColumn, 
                                            StringComparison.OrdinalIgnoreCase) != 0
                                         && string.Compare(
                                             columnName,
                                             this.membershipProvider.UserNameColumn,
                                             StringComparison.OrdinalIgnoreCase) != 0).ToList();
            }
        }
    }