grid.GroupSum(AColumn: Integer);
Calculates column sums per group
grid.GroupAvg(AColumn: Integer);
Calculates column averages per group
Grid.GroupMin(AColumn: Integer);
Calculates column minimum per group
Grid.GroupMax(AColumn: Integer);
Calculates column minimum per group
Grid.GroupCount(AColumn: Integer);
Calculates number of rows in a group for each group
Grid.GroupCustomCalc(AColumn: Integer);
Allows to perform a custom calculation of group data with the event OnGroupCalc
If there is a need for a special group calculation that is not available in the standard group
calculation functions, the method grid.GroupCustomCalc can be used. For each group in the grid,
this will trigger the event OnGroupCalc
Pieter Scheldeman2016-06-15 09:18:50