When sorting/filtering the list, no event will be fired

Hey, I allowed sorting and filtering for some of my columns in my table. Unfortunately, I don't have the chance

to react on the filter/sorting event because none of both will get fired. I had a look in the interface IF_FPM_GUIBB_LIST and there

I saw 2 constants for the events:

Did I miss something? because those events won't get fired?