How to maintain scroll position when underlying data changes?

[clintharris]

What's the best way to maintain the current scroll position of the list when the underlying data array changes (assuming the currently visible items are still available in both the "old" and "new" data arrays)?

I'm using <Virtuoso> to render a list in which the array data changes when the user scrolls to certain positions in the list. In other words, the current implementation is trying to use pagination in which only a single page of data is loaded at a time--and that page changes as you scroll (vs. using virtuoso's "load more" or "prepend" handlers to add more items to the data array that keeps growing).

Is there a Virtuoso property I can use to maintain the list position between data array changes?

[arjendevos]

Same problem here

[everduo]

firstItemIndex