primefaces / primefaces/primereact
ListBox: The options list is being scrolled unexpectedly
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- Dominant language
- CSS
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Description
Describe the bug
When you select some option, and then use the mouse wheel to scroll down or up, and then select another option, the list is being scrolled unexpectedly. Sometimes the clicked option is not selected at all (see option "Name 21" in the GIF below).
Reproducer
https://stackblitz.com/edit/tfiy9yla?file=src%2FApp.jsx
System Information
System:
OS: Windows 11 10.0.26100
CPU: (8) x64 11th Gen Intel(R) Core(TM) i5-1135G7 @ 2.40GHz
Memory: 3.08 GB / 23.70 GB
Binaries:
Node: 20.11.0 - C:\Program Files\nodejs\node.EXE
npm: 10.2.4 - C:\Program Files\nodejs\npm.CMD
bun: 1.2.18 - ~\.bun\bin\bun.EXE
Browsers:
Edge: Chromium (139.0.3405.111)
Internet Explorer: 11.0.26100.1882
npmPackages:
primereact: ^10.9.7 => 10.9.7
react: 19.1.0 => 19.1.0
Steps to reproduce the behavior
- Go to https://stackblitz.com/edit/tfiy9yla?file=src%2FApp.jsx
- Select some option
- Scroll the list and try to select another option immediately
Expected behavior
- The list stays in the position the user scrolled to.
- When the user selects a new option, it's not scrolling anywhere, but selects the option, and stays in the current scroll position.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by running the StackBlitz reproducer at src/App.jsx and follow the ListBox interaction after selecting, scrolling, and immediately selecting another option. Confirm that the list keeps its scroll position and that the clicked option is selected; verify the behavior in the reported Windows and React 19 environment.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- react
- Domain
- frontend
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100