Is there a diagram undo/redo event?

[Krauss_Peter]

Hi there,

Is an event triggered in the TatDiagram when either Undo or Redo is executed?
I figured out that the "OnInsertBlock" or "OnInsertDControl" is not fired,
Which event is fired?

Regards,
Peter

[wlandgraf (Wagner Landgraf)]

Indeed, no event is fired, but because Undo/Redo is internal operation and is totally controlled by the developer. The diagram never do an undo/redo operation by its own, only when the developer calls the method, so just call the Undo/Redo method and then perform the needed operations.

[Krauss_Peter]

Thanks a lot.