primefaces / primefaces/primereact

Listbox virtualscroller doesnt display data

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Type: Bug
Dominant language
CSS
Stars
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Forks
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Description

Describe the bug

i get just a few entries and the data never populates. dropdown virtual scroll works great.
You can see this in the demo at https://primereact.org/listbox/#virtualscroll scroll mid way and nothing happens.

Reproducer

https://primereact.org/listbox/#virtualscroll

PrimeReact version

10.6.3

React version

18.x

Language

TypeScript

Build / Runtime

Vite

Browser(s)

All

Steps to reproduce the behavior

Go to the demo
https://primereact.org/listbox/#virtualscroll
scroll mid way down and data never appears.

Expected behavior

data to appear

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the Listbox virtualscroll demo linked in the issue and reproduce the problem by scrolling midway through the data. Compare its behavior with the working dropdown virtual scroll, then verify that entries appear while scrolling and that the reported behavior is fixed in the listed PrimeReact and React versions.

Written by the indexing model from the issue text.

Assessment

Tech stack
react, typescript, vite
Domain
frontend
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Quiet
Clarity
Mostly clear
Newbie friendliness
45/100

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