Andreas,
Thank you for your help.
For the control you mentioned, they do have API to scroll. But for some controls, they will show a scroll bar if it contains too many items, just like ListBox - SAPUI5 Demo Kit, and they don't have an API to scroll, for these controls, I need a way to instruct it. That is why I thought about sending a ScrollEvent or something similar. Is there some way in SAPUI5 to achieve this goal?