public override Object Calculate(AggregateValueBag aggregateValues, IEnumerable <ColumnValueBag <Row> > rows) => rows.Sum(r => r.Input.Number);
public override Object Calculate(AggregateValueBag aggregateValues, IEnumerable <ColumnValueBag <Row> > rows) => aggregateValues.Get <Int32>(0) - aggregateValues.Get <Int32>(1);
public override Object Calculate(AggregateValueBag aggregateValues, ColumnValueBag <Row> columnValues) => columnValues.Input.Number * columnValues.Input.Number;