Check if any data was changed in ALV with FM

Hi!

I have a ALV with FM REUSE_ALV_GRID_DISPLAY_LVC with editable fields.

In USER_COMMAND event, i execute FM GET_GLOBALS_FROM_SLVC_FULLSCR and call method CHECK_ CHANGED_DATA to get data from screen.

Has any way to check if any data was changed in screen? Or i will have to do LOOP, if t_report-field1 <> t_report2-field1, endloop.

I need to know if any data in internal table has changed for display a message "Data was changed". How can i do that?

Thanks!