TFPExpressionParser.UpdateAggregate procedure
Update aggregate calculation with value
Declaration
procedure UpdateAggregateDescription
The UpdateAggregate method updates all aggregate functions in the expression with new data values during aggregate processing.
It processes each data row or value set through the expression's aggregate functions.
The TFPExpressionParser method is called repeatedly for each data item
when processing datasets with aggregate expressions to accumulate the aggregate results.
An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.