primefaces / primefaces/primereact

MultiSelect: virtualScrollerOptions

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Status: Needs Triage
Dominant language
CSS
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Description

Describe the bug

Found a bug in MultiSelect when we have many items and select all of them, and I open the dropdown again, it crashes the page, it is even happening in the documentation

Reproducer

No response

System Information
System:
    OS: Windows 11 10.0.26200
    CPU: (8) x64 11th Gen Intel(R) Core(TM) i7-11390H @ 3.40GHz
    Memory: 1.93 GB / 15.74 GB
  Binaries:
    Node: 22.20.0 - C:\Users\henrique.silva\.version-fox\cache\nodejs\current\node.EXE
    npm: 10.9.3 - C:\Users\henrique.silva\.version-fox\cache\nodejs\current\npm.CMD
  Browsers:
    Chrome: 141.0.7390.108
    Edge: Chromium (140.0.3485.66)
  npmPackages:
    primereact: ^10.3.3 => 10.3.3 
    react: ^18.2.0 => 18.2.0
Steps to reproduce the behavior
  1. Select all items in the dropdown
  2. Open the dropdown again
Expected behavior

No response

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 MultiSelect documentation example using virtualScrollerOptions and reproduce the reported sequence: select all items, then reopen the dropdown. Trace the MultiSelect behavior around that interaction and verify that reopening no longer crashes the page, including in the documentation example.

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
38/100

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