Aggregate()

override object System.Data.Common.SqlDateTimeStorage.Aggregate ( int[] records, AggregateType kind )

inlinevirtual

Reimplemented from System.Data.Common.DataStorage.

Definition at line 19 of file SqlDateTimeStorage.cs.

    {
        bool flag = false;
        try
        {
            switch (kind)
            {
            case AggregateType.Min:
            {
                SqlDateTime sqlDateTime2 = SqlDateTime.MaxValue;
                foreach (int num3 in records)
                {
                    if (!IsNull(num3))
                    {
                        if (SqlDateTime.LessThan(_values[num3], sqlDateTime2).IsTrue)
                        {
                            sqlDateTime2 = _values[num3];
                        }
                        flag = true;
                    }
                }
                if (flag)
                {
                    return sqlDateTime2;
                }
                return _nullValue;
            }
            case AggregateType.Max:
            {
                SqlDateTime sqlDateTime = SqlDateTime.MinValue;
                foreach (int num2 in records)
                {
                    if (!IsNull(num2))
                    {
                        if (SqlDateTime.GreaterThan(_values[num2], sqlDateTime).IsTrue)
                        {
                            sqlDateTime = _values[num2];
                        }
                        flag = true;
                    }
                }
                if (flag)
                {
                    return sqlDateTime;
                }
                return _nullValue;
            }
            case AggregateType.First:
                if (records.Length != 0)
                {
                    return _values[records[0]];
                }
                return null;
            case AggregateType.Count:
            {
                int num = 0;
                for (int i = 0; i < records.Length; i++)
                {
                    if (!IsNull(records[i]))
                    {
                        num++;
                    }
                }
                return num;
            }
            }
        }
        catch (OverflowException)
        {
            throw ExprException.Overflow(typeof(SqlDateTime));
        }
        throw ExceptionBuilder.AggregateException(kind, _dataType);
    }

References System.Data.Common.DataStorage._dataType, System.Data.Common.DataStorage._nullValue, System.Data.Common.SqlDateTimeStorage._values, System.Data.ExceptionBuilder.AggregateException(), System.Xml.Dictionary, System.Data.SqlTypes.SqlDateTime.GreaterThan(), System.Data.IsNull, System.Data.SqlTypes.SqlDateTime.LessThan(), System.Data.SqlTypes.SqlDateTime.MaxValue, System.Data.SqlTypes.SqlDateTime.MinValue, and System.Data.ExprException.Overflow().