C# Warning CA1822 is Too Aggressive, and the Fixup breaks Some Features

[vsfeedback]

This issue has been moved from a ticket on Developer Community.

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[severity:It bothers me. A fix would be nice]
C# Warning CA1822 is used on public interfaces, for example:

public List<Person> People => people;

Generates the warning (because 'people' is a static list) and suggests a fixup of

public static List<Person> People => people;

However, that breaks XAML bindings like:

ItemsSource="{Binding People}"

You can see an example of the code above in https://github.com/david-maw/CollectionViewTest-sizezero.git, an example program meant to illustrate a different problem.

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Original Comments

Feedback Bot on 6/8/2026, 03:22 AM:

Based on similar issues resolved with Microsoft in the last 6 months, the following can help resolve this issue faster.

If not already included, please provide:

Detected: OS: 10.0.26200.0 VS: Insiders [11811.120], Product: community-2026, Project type: C#

Please share:

• The exact CA1822 warning/fixup scenario you’re seeing: which code action you used, and what “breaks some features” means in practice.
• A small before/after code snippet showing the member before the CA1822 fixup and after it.
• The specific feature(s) that stopped working after applying the fix.
• Whether this happens in a new/simple C# project or only in one solution.
• The exact Visual Studio steps to reproduce the issue from start to finish.

Feedback Bot on 6/9/2026, 08:53 AM:

We have directed your feedback to the appropriate engineering team for further evaluation. The team will review the feedback and notify you about the next steps.

[deepakrathore33]

#7577