ALV Shared TOOLBAR Event

Hi,

I have implemented a class of event receiver, which is shared for some different ALV objects.

I would like to add buttons to toolbar only of the ALV is ready for input (using is_ready_for_input method). However, I have not found how can I get the ALV grid which is being handled (or any reference to that object).

How can I call methods of the handled ALV grid during it's event?

Thanks in advance,

Shai