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Fix incorrect logic in CharIsPrintable for UnicodeCategory exclusions

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Fixes #14072 ## Proposed changes - The original implementation of `CharIsPrintable` contains a semantic error in the combination of is not and or. As a result, it returns true for...

LeafShi1

Fix issue 14071: ComboBox.ObjectCollection.CopyTo(Array destination, int index) copies Entry object, not inner item

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Fixes #14071 ## Proposed changes - Refactored the CopyTo methods to ensure correct item copying and type safety. ## Customer Impact - Copying ComboBox items to an array or using...

SimonZhao888

Fixing/clarifying XML comments for ScreenCaptureMode and VB's ColorMode.

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Fixes a couple of issues in XML comments for the ScreenCaptionMode and clarifies the usage of the ColorMode property in VB's `ApplyApplicationDefaultEventArg`. ###### Microsoft Reviewers: [Open in CodeFlow](https://microsoft.github.io/open-pr/?codeflow=https://github.com/dotnet/winforms/pull/14074)

KlausLoeffelmann

VS2022, VS2026 winforms designer for .net framework wants to load System.Runtime.dll v. 10.0.0.0

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sorry, there wasn't a issue template for the .net framework winforms designer, so i create this blank one. here's a screenshot of the stacktrace. here's a link to the devcom...

AdmiralSnyder

Incorrect Mouse Event Capturing During Design Time in .NET Core Projects Prevents Drag-and-Drop of Custom Docked Panel

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> Please take a look at [this blog](https://devblogs.microsoft.com/dotnet/custom-controls-for-winforms-out-of-process-designer/) to find more information about building for the out-of-process designer. There are links to code samples and examples that should help you...

NagarajManimaran

System.Windows.Forms.WebBrowser memory leak issue

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### .NET version We are migrating our software from .NET framework 4.8 to .NET core 8.0 ### Did it work in .NET Framework? Yes ### Did it work in any...

phuongdoan13

[DarkMode] there no status changes when using mouse over the tabPage items in DarkMode

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### .NET version latest .NET SDK 10.0.1 ### Did it work in .NET Framework? No ### Did it work in any of the earlier releases of .NET Core or .NET...

Zheng-Li01

.NET 9.0 Error with DialogFileOpen

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### .NET version .NET 9.0 ### Did it work in .NET Framework? Yes ### Did it work in any of the earlier releases of .NET Core or .NET 5+? .NET...

Greg66

[DarkMode]: TabControl doesn't render tab titles correctly when SizeMode = Fixed

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### .NET version 10.0.100-rc.1.25451.107 ### Did it work in .NET Framework? No ### Did it work in any of the earlier releases of .NET Core or .NET 5+? N/A ###...

peymanr34

Update the OwnerDraw flag when BackgroundImage changes

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Fixes #13823 ## Root Cause The `OwnerDraw` property of the Button control incorrectly returns `false` when `BackgroundImage` is set during early initialization. This is due to the `OwnerDraw` logic checking...

LeafShi1