how to fix visibility area

[Nyx2022]

hello , i'm using this lib,
i will pass rows data from backend to frontend frequently,and i use data = data_new.concat（data） to update grid,but when i'm watching some rows in the grid added before, i wanna the scrollbar of grid will be fixed,and the visibility area will be fixed,too .until i move mouse to scroll,is there any method?or can this be new feature added in the future?

[Natasha-eng]

Hi @Nyx2022 ,
Currently, the grid library doesn't have a built-in feature to lock the scroll position and visibility area when new rows are prepended to the data.

However, I've created a working example that achieves this behavior: https://snippet.svar.dev/svelte/HGUgFgmqp
You can use this example as a reference to implement similar functionality in your project, or adapt the approach to your specific needs.

[Nyx2022]

ok,thank you,i saw this demo ,this demo is based on there are long time for ui thread to update,because it was triggered by user's click,but my situation is from server without fixed or long long time, so i do not make sure it suit me,but i will try it first