Online Documentation for Advanced Data Export for RAD Studio VCL
property OnGetAggregateParams: TGetAggregateParamsEvent;
The OnGetAggregateParams event takes place when the parameters of the cell containing aggregate function are received. Depending on the column number, you can change the format of the cell value, or, if the value is empty, set a string value to the cell, e.g. 'Total:'. See demo application to learn more about this event.