primefaces / primefaces/primereact

VirtualScroller: Flickering in certain circumstances

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#2,854 5 comments 2 reactions 1 assignee View on GitHub

@mertsincan is already working on this.

Since Sep 22, 2022.

Resolution: Workaround Status: Pending Review Type: Bug
Dominant language
CSS
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Description

Describe the bug

I'm using the DataTable with virtual scrolling and it is flickering for me. I have a big data table with many columns and it flickers when scrolling. It's hard to recreate in codesandbox, but it should be sufficient was you scroll.

I believe it's occurring due to this line:
https://github.com/primefaces/primereact/blob/7d5a8d12953e3d70303c09134c0a02e3209b3605/components/lib/virtualscroller/VirtualScroller.js#L252

This line sets a new style (translate3d) for the next data chunk, which causes the table to display it. Then, it's corrected after.

Usually this is fast enough to not be seen, but in my instance, I think it's due to using body calls in the DataTable, it slows this process down and causes flickering.

This might be solvable by immediately setting the table back to the correct position after updating the translate3d style, but I am experimenting with it and haven't been able to find a fix.

Reproducer

https://codesandbox.io/s/primereact-test-forked-cwr1db

PrimeReact version

8.0.1

React version

18.x

Language

ES6

Build / Runtime

Next.js

Browser(s)

No response

Steps to reproduce the behavior
  1. Make a DataTable with a lot of dynamic body template columns.
  2. Scroll the table and notice flickering.
Expected behavior

Table should not flicker.

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