Dropdown Keyboard Navigation not responding to Arrow keys #1646

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opened 2026-01-29 17:56:41 +00:00 by claunia · 2 comments
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Originally created by @logantuk on GitHub (Feb 28, 2025).

Describe the bug
As per the demo page https://blazor.radzen.com/dropdown?theme=material3 if you tab to a drop down then attempt to select an item using down or up arrows then nothing happens.

Strangely the Shift Key works but multiple presses of this flags up the Windows Caret Browsing dialog.

To Reproduce
Steps to reproduce the behavior:

  1. Go to https://blazor.radzen.com/dropdown?theme=material3
  2. Tab to a Dropdown
  3. Press down to attempt to select a different item.
  4. Nothing happens

Desktop (please complete the following information):

  • OS: Windows 10 Ent
  • Browser: Chrome
  • Version: 132.0.6834.16
Originally created by @logantuk on GitHub (Feb 28, 2025). <!-- IMPORTANT: Read this first!!! 1. If you own a Radzen Professional or Еnterprise subscription you can report your issue or ask us a question via email at info@radzen.com. Radzen staff will reply within 24 hours (Professional) or 16 hours (Enterprise) 2. The Radzen staff guarantees a response to issues in this repo only to paid subscribers. 3. If you have a HOW TO question start a new forum thread in the Radzen Community forum: https://forum.radzen.com. Radzen staff will close issues that are HOWTO questions. 4. Please adhere to the issue template. Specify all the steps required to reproduce the issue or link a project which reproduces it easily (without requiring extra steps such as restoring a database). --> **Describe the bug** As per the demo page https://blazor.radzen.com/dropdown?theme=material3 if you tab to a drop down then attempt to select an item using down or up arrows then nothing happens. Strangely the Shift Key works but multiple presses of this flags up the Windows Caret Browsing dialog. **To Reproduce** Steps to reproduce the behavior: 1. Go to https://blazor.radzen.com/dropdown?theme=material3 2. Tab to a Dropdown 3. Press down to attempt to select a different item. 4. Nothing happens **Desktop (please complete the following information):** - OS: Windows 10 Ent - Browser: Chrome - Version: 132.0.6834.16
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@enchev commented on GitHub (Mar 3, 2025):

Worked normally on all browsers including Edge, Chrome and FF.

https://github.com/user-attachments/assets/83c92148-2232-4541-9978-bf4e7963bd46

@enchev commented on GitHub (Mar 3, 2025): Worked normally on all browsers including Edge, Chrome and FF. https://github.com/user-attachments/assets/83c92148-2232-4541-9978-bf4e7963bd46
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Owner

@logantuk commented on GitHub (Mar 3, 2025):

Thanks for checking, it does indeed work as expected. However, I can replicate but only when I have the NVDA Screen Reader running so it's possibly a 3rd party interference issue. Posting in case anyone else every encounters this.

@logantuk commented on GitHub (Mar 3, 2025): Thanks for checking, it does indeed work as expected. However, I can replicate but only when I have the NVDA Screen Reader running so it's possibly a 3rd party interference issue. Posting in case anyone else every encounters this.
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Reference: starred/radzen-blazor#1646