TdxSpreadSheetHistoryCustomCommand.Undo Method

Rolls back the recorded change in the target worksheet.

Declaration

procedure Undo; virtual;

Remarks

Every TdxSpreadSheetHistoryCustomCommand class descendant overrides the Undo and Redo procedures to implement reverse and forward change algorithms specific to the command’s target.

Note

The history action’s Undo procedure calls the Undo procedure internally to roll back the recorded command.