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Deadzone in `NumericUpDown` control

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#4,094 2 comments 0 reactions 1 assignee View on GitHub

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@Keboo is already working on this.

Since Oct 2, 2026.

  • #4101 by @Keboo — merged

Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
58/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Active
Tech stack
csharp
Domain
desktop

Research direction

Start by reproducing the dead zone in the NumericUpDown control on version 5.3.0, then inspect the control and its TextBox's internal ScrollViewer to identify where clicks fail to focus the element. Done means clicking throughout the control consistently focuses it without breaking existing NumericUpDown behavior; add or update a focused regression test if the relevant test location is found.

Written by the indexing model from the issue text.

Description

bug
Bug explanation

The NumericUpDown control has a dead zone where, when clicking, it does not focus the element.
I assume this has to do with the internal ScrollViewer in the TextBox

Image
Version

5.3.0

Dominant language
C#
Stars
16.3k
Forks
3.5k
Avg merge
1d 15h
Merged PRs (30d)
10

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