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Fix issue 14471: The WinformsControlTest project exited when clicking Column2 header after clicked the Change DGV font button - #14477

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SimonZhao888 merged 1 commit into
dotnet:mainfrom
SimonZhao888:fix_issue_14471
Apr 16, 2026
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Fix issue 14471: The WinformsControlTest project exited when clicking Column2 header after clicked the Change DGV font button#14477
SimonZhao888 merged 1 commit into
dotnet:mainfrom
SimonZhao888:fix_issue_14471

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@SimonZhao888 SimonZhao888 commented Apr 16, 2026 •
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Fixes #14471

Proposed changes

  • Update WinformsControlTest, since Comparer(object? a, object? b) method needs the params neither a nor b implements the System.IComparable interface. -or- a and b are of different types and neither one can handle comparisons with the other.

Customer Impact

  • WinformsControlTest run correctly.

Regression?

  • No

Risk

  • Min

Screenshots

Before

CallStack.mp4

After

2026-04-16.112744.mp4

Test methodology

  • Manually

Test environment(s)

  • 11.0.100-preview.3.26170.106
Microsoft Reviewers: Open in CodeFlow

@SimonZhao888
SimonZhao888 requested a review from a team as a code owner April 16, 2026 03:29
@SimonZhao888
SimonZhao888 merged commit 4587f30 into dotnet:main Apr 16, 2026
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@SimonZhao888
SimonZhao888 deleted the fix_issue_14471 branch April 16, 2026 05:55
@dotnet-maestro dotnet-maestro Bot mentioned this pull request Apr 17, 2026
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Reviewers

@LeafShi1 LeafShi1 LeafShi1 approved these changes
@ricardobossan ricardobossan Awaiting requested review from ricardobossan

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@SimonZhao888 SimonZhao888

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The WinformsControlTest project exited when clicking Column2 header after clicked the Change DGV font button

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@SimonZhao888 @LeafShi1