TTMSFNCDataGridData.GroupCustomCalculation Method

Group aggregate using a user-supplied callback; adds or updates the summary in the group header row for AColumn.

API unit family: TMSFNCDataGridData Declaring type: TTMSFNCDataGridData

Overloads

Overload 1

Group aggregate using a user-supplied callback; adds or updates the summary in the group header row for AColumn.

procedure GroupCustomCalculation(AColumn: Integer; ACalculationOptionsCallback: TTMSFNCDataGridDataGetColumnCalculationOptionsCallback = nil; ACustomCalculationCallback: TTMSFNCDataGridDataCustomColumnCalculationCallback = nil); overload;

Parameters

Name	Description
AColumn	Zero-based column index used by the operation.
ACalculationOptionsCallback	Callback invoked by the operation.
ACustomCalculationCallback	Callback invoked by the operation.

Overload 2

Group aggregate using a user-supplied callback over multiple columns.

procedure GroupCustomCalculation(AColumns: TArray<Integer>; ACalculationOptionsCallback: TTMSFNCDataGridDataGetColumnCalculationOptionsCallback = nil; ACustomCalculationCallback: TTMSFNCDataGridDataCustomColumnCalculationCallback = nil); overload;

Parameters

Name	Description
AColumns	Zero-based column index used by the operation.
ACalculationOptionsCallback	Callback invoked by the operation.
ACustomCalculationCallback	Callback invoked by the operation.