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Clicking on a ListBox with a Drawmode other than Normal in the WinformsControlsTest application brings up the exception error window #13047

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chaowendy opened this issue Feb 28, 2025 · 0 comments
Open

Clicking on a ListBox with a Drawmode other than Normal in the WinformsControlsTest application brings up the exception error window #13047

chaowendy opened this issue Feb 28, 2025 · 0 comments
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untriaged The team needs to look at this issue in the next triage

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@chaowendy
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chaowendy commented Feb 28, 2025 •
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.NET version

main branch of WinForms repo

Did it work in .NET Framework?

Not tested/verified

Did it work in any of the earlier releases of .NET Core or .NET 5+?

No, also repro in release/8.0 branch of WinForms repo.

Issue description

Clicking on ListBox Drawmode.OwnerDrawFixed and ListBox Drawmode.OwnerDrawVariable brings up the exception error window in the WinformsControlsTest application

Image

Steps to reproduce

Run WinformsControlsTest app in Winforms repo.
@chaowendy chaowendy added untriaged The team needs to look at this issue in the next triage area-DesignerSupport and removed area-DesignerSupport labels Feb 28, 2025
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