Grid scrolling [closed]

asked 2013-06-20 10:44:11 +0800

uhegel
45 ● 3

updated 2013-06-21 08:25:54 +0800

Is it possible to scroll a grid (live data, ROD) to top? (After changing or updating ListModel)

fireEvent(ListDataEvent.STRUCTURE_CHANGED, -1, -1)

updates the grid, but scrolling stays on the current position - even if the position is after the last row (when row count gets smaller).

Clients.scrollIntoView(getRows().getFirstChild())

does not work - I think because of ROD

invalidate does not help.

I have figured out, that the whole problem only happens, when ROD is activated for the grid. Without rod everything works as expected. After changing the List Model and notifying ListData Event Listeners the grid will scroll to the first row.

With ROD enabled the scroll position stays where it is. You can sometimes see, that it scrolls to the first row for a moment and then goes to the preserved scroll position: It seems that there is some code on client side, which preserves the scroll position in ROD Mode. I will have a look at the sources. Maybe I will understand what happens and, with a bit of luck, there is a way to control this behaviour.

If there is someone out there, who already knows what happens in ROD Mode, it would be great to get some helping information...