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[API Suggestion] Introduce Modern Visual Styles for Apps targeting .NET 11+ and Win 11+ for A11Y improvements. (Was DarkMode/VisualStyles)

api-approved(4) API was approved in API review, it can be implemented(4) API was approved in API review, it can be implemented

area-Theming

At Risk 60-80Feature is with 60%-80% prob. delayed/at risk due to internal reprioritization/resource scarceness.Feature is with 60%-80% prob. delayed/at risk due to internal reprioritization/resource scarceness.

blockingUsed by the API Review BoardUsed by the API Review Board

Status: Open.

Feature

#7641 In dotnet/winforms;

· KlausLoeffelmann opened on Aug 23, 2022

Fix issue#9807 review 2nd (Replaces PR #11867) DRAFT

🚧 work in progressWork that is current in progressWork that is current in progress

area-VisualBasic

draftdraft PRdraft PR

Status: Draft (not ready).

dotnet/winformsnumber 12489

#12489 In dotnet/winforms;

· paul1956 opened on Nov 15, 2024

Code Coverage for DownloadFile Review 1St

🚧 work in progressWork that is current in progressWork that is current in progress

area-VisualBasic

Status: Open (in progress).

dotnet/winformsnumber 12486

#12486 In dotnet/winforms;

· paul1956 opened on Nov 14, 2024

[API Suggestion] WinForms Application Builder API Proposal

api-suggestion(1) Early API idea and discussion, it is NOT ready for implementation(1) Early API idea and discussion, it is NOT ready for implementation

area-Infrastructure

area-Templates

At risk 10-30Feature is with 10%-30% prob. delayed/at risk due to internal reprioritization/resource scarceness.Feature is with 10%-30% prob. delayed/at risk due to internal reprioritization/resource scarceness.

design-discussionOngoing discussion about design without consensusOngoing discussion about design without consensus

epicGroups multiple user stories. Can be grouped under a theme.Groups multiple user stories. Can be grouped under a theme.

needs-area-label

Status: Open.

Epic

#14082 In dotnet/winforms;

· KlausLoeffelmann opened on Nov 25, 2025

Add recommendations and potentially analyzers to make TryGetData<T> APIs and drag-and-drop scenarios more trimmable

area-Analyzers/CodeFixesA Roslyn Analyzer is either needed for the context, needs to be scope extended or fixed.A Roslyn Analyzer is either needed for the context, needs to be scope extended or fixed.

area-Trimming

tenet-performanceImprove performance, flag performance regressions across core releasesImprove performance, flag performance regressions across core releases

Status: Open.

Task

#12611 In dotnet/winforms;

· Tanya-Solyanik opened on Dec 9, 2024

Please make <code>Control.DesiredVisibility</code> public

api-suggestion(1) Early API idea and discussion, it is NOT ready for implementation(1) Early API idea and discussion, it is NOT ready for implementation

Status: Open.

#12641 In dotnet/winforms;

· rickbrew opened on Dec 13, 2024

Expose some Events of FolderBrowserDialog to match WindowsAPICodePack CommonOpenFileDialog

api-suggestion(1) Early API idea and discussion, it is NOT ready for implementation(1) Early API idea and discussion, it is NOT ready for implementation

Status: Open.

Feature

#12799 In dotnet/winforms;

· Aniobodo opened on Jan 16, 2025

ContainerControl incorrectly scales multiple times when moving from one ControlCollection to another.

💥 regression-releaseRegression from a public releaseRegression from a public release

area-HDPIHDPI, not specific to Dpi mode of appHDPI, not specific to Dpi mode of app

Status: Open.

#12851 In dotnet/winforms;

· ChristopherDShea opened on Jan 28, 2025

Make a pass at string resources

Status: Open.

#12861 In dotnet/winforms;

· JeremyKuhne opened on Jan 30, 2025

TabControl doesn't send the name of selected tab to accessibility clients on initial focus

investigateItems we want to investigate before making a decision on an issueItems we want to investigate before making a decision on an issue

tenet-accessibilityMAS violation, UIA issue; problems with accessibility standardsMAS violation, UIA issue; problems with accessibility standards

Status: Open.

Task

#12866 In dotnet/winforms;

· trypsynth opened on Jan 31, 2025

Ensure typed deserialization requires exact type match from resolver

area-ClipboardIssues related to ClipboardIssues related to Clipboard

area-Serialization-BinaryFormatter-FeatureWorkFeature work under the general area of BinaryFormatter related serializationFeature work under the general area of BinaryFormatter related serialization

binaryformatter-migrationIssues related to the removal of BinaryFormatter and migrations away from itIssues related to the removal of BinaryFormatter and migrations away from it

Status: Open.

Task

#12929 In dotnet/winforms;

· JeremyKuhne opened on Feb 12, 2025

A Suggestion - facilitate use of DirectX in custom controls

api-suggestion(1) Early API idea and discussion, it is NOT ready for implementation(1) Early API idea and discussion, it is NOT ready for implementation

Status: Open.

Feature

#13033 In dotnet/winforms;

· ghost opened on Feb 26, 2025

Need ability to not always release mouse capture at end of <code>WmMouseUp</code> for multi-button gestures

api-suggestion(1) Early API idea and discussion, it is NOT ready for implementation(1) Early API idea and discussion, it is NOT ready for implementation

Status: Open.

Feature

#13126 In dotnet/winforms;

· rickbrew opened on Mar 12, 2025

Control.CheckForIllegalCrossThreadCalls to use Interlocked.Increment/Decrement

api-suggestion(1) Early API idea and discussion, it is NOT ready for implementation(1) Early API idea and discussion, it is NOT ready for implementation

Status: Open.

Feature

#13172 In dotnet/winforms;

· ulfemsoy opened on Mar 20, 2025

Support for the Win11 22H2 UnifiedPrintDialog

api-suggestion(1) Early API idea and discussion, it is NOT ready for implementation(1) Early API idea and discussion, it is NOT ready for implementation

Regression by Win-OS

Status: Open.

Feature

#13264 In dotnet/winforms;

· WolfgangHG opened on Apr 8, 2025

Move the simple test cases from ClipboardTests class to ClipboardCoreTests

area-ClipboardIssues related to ClipboardIssues related to Clipboard

test-enhancementImprovements of test source codeImprovements of test source code

Status: Open.

Task

#13331 In dotnet/winforms;

· Tanya-Solyanik opened on Apr 21, 2025

Update Analyzer Test Infrastructure

Status: Open.

Task

#13428 In dotnet/winforms;

· merriemcgaw opened on May 8, 2025

Create new analyzer to check for the correct usage of modal dialogs

area-Analyzers/CodeFixesA Roslyn Analyzer is either needed for the context, needs to be scope extended or fixed.A Roslyn Analyzer is either needed for the context, needs to be scope extended or fixed.

Status: Open.

Task

#13429 In dotnet/winforms;

· merriemcgaw opened on May 8, 2025

Simplify GraphicsInternal optimization.

area-System.DrawingSystem.Drawing issuesSystem.Drawing issues

Status: Open.

#13604 In dotnet/winforms;

· JeremyKuhne opened on Jun 16, 2025

[Tracking] Important manually review work for DarkMode for Preview 7

area-DarkModeIssues relating to Dark Mode featureIssues relating to Dark Mode feature

priority-2Work that is important, but not critical for the releaseWork that is important, but not critical for the release

tracking

Status: Open.

Task

#13605 In dotnet/winforms;

· KlausLoeffelmann opened on Jun 16, 2025

Merge a series of Analyzers with the new Analyzer TestInfra

area-Analyzers/CodeFixesA Roslyn Analyzer is either needed for the context, needs to be scope extended or fixed.A Roslyn Analyzer is either needed for the context, needs to be scope extended or fixed.

Status: Open.

#13622 In dotnet/winforms;

· KlausLoeffelmann opened on Jun 18, 2025

Reopen issue 13499: AxHost keeping parent alive

Status: Open.

Bug

#13659 In dotnet/winforms;

· cogkandrade opened on Jun 26, 2025

[Tracking]Update the Dark Mode docs with regards to dark mode limitations

📚 documentationOpen issue here - https://github.com/dotnet/dotnet-api-docs/issuesOpen issue here - https://github.com/dotnet/dotnet-api-docs/issues

area-DarkModeIssues relating to Dark Mode featureIssues relating to Dark Mode feature

priority-1Work that is critical for the release, but we could probably ship withoutWork that is critical for the release, but we could probably ship without

Status: Open.

#13722 In dotnet/winforms;

· KlausLoeffelmann opened on Jul 21, 2025

Point, PointF, Size and SizeF: Unary minus operator

api-suggestion(1) Early API idea and discussion, it is NOT ready for implementation(1) Early API idea and discussion, it is NOT ready for implementation

area-System.DrawingSystem.Drawing issuesSystem.Drawing issues

Status: Open.

#11860 In dotnet/winforms;

· ulfemsoy opened on Aug 12, 2024

Unit test coverage for the PropertyGrid class

test-bugProblem in test source code (most likely)Problem in test source code (most likely)

Status: Open.

#12055 In dotnet/winforms;

· LeafShi1 opened on Sep 5, 2024