System.Data.Common.SqlBinaryStorage.Aggregate C# (CSharp) Method

        public override object Aggregate(int[] records, AggregateType kind)
        {
            try
            {
                switch (kind)
                {
                    case AggregateType.First:
                        if (records.Length > 0)
                        {
                            return _values[records[0]];
                        }
                        return null;

                    case AggregateType.Count:
                        int count = 0;
                        for (int i = 0; i < records.Length; i++)
                        {
                            if (!IsNull(records[i]))
                                count++;
                        }
                        return count;
                }
            }
            catch (OverflowException)
            {
                throw ExprException.Overflow(typeof(SqlBinary));
            }
            throw ExceptionBuilder.AggregateException(kind, _dataType);
        }