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microsoft/microsoft-ui-xaml

WinUI: a modern UI framework with a rich set of controls and styles to build dynamic and high-performing Windows applications.

13 good first / help-wanted issues · C++ · last activity Aug 24, 2026

7.9K stars 891 forks 7.9K watchers C++ MIT License
cpp csharp desktop fluent-design uwp windows windows-10 winui winui3 xaml
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13 Open Issues Need Help Last updated: Aug 24, 2026

Open Issues Need Help

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Pane toggle button is clipped in NavigationView about 4 hours ago
bug working on it help wanted area-NavigationView team-Controls
microsoft/microsoft-ui-xaml
7.9K

WinUI: a modern UI framework with a rich set of controls and styles to build dynamic and high-performing Windows applications.

C++
#cpp#csharp#desktop#fluent-design#uwp#windows#windows-10#winui#winui3#xaml
Drag and drop for navigation seems broken in lastest pre-release! 1 day ago
bug working on it help wanted area-NavigationView team-Controls
microsoft/microsoft-ui-xaml
7.9K

WinUI: a modern UI framework with a rich set of controls and styles to build dynamic and high-performing Windows applications.

C++
#cpp#csharp#desktop#fluent-design#uwp#windows#windows-10#winui#winui3#xaml
ToggleSwitch control internally sets a `MinWidth` to 154, which is way larger than its default width 18 days ago
bug working on it help wanted team-Controls area-ToggleSwitch
microsoft/microsoft-ui-xaml
7.9K

WinUI: a modern UI framework with a rich set of controls and styles to build dynamic and high-performing Windows applications.

C++
#cpp#csharp#desktop#fluent-design#uwp#windows#windows-10#winui#winui3#xaml
TabView: Closing left-most tab throws exception when IsAddTabButtonVisible = false 21 days ago
bug working on it help wanted area-TabView team-Controls product-winui2
microsoft/microsoft-ui-xaml
7.9K

WinUI: a modern UI framework with a rich set of controls and styles to build dynamic and high-performing Windows applications.

C++
#cpp#csharp#desktop#fluent-design#uwp#windows#windows-10#winui#winui3#xaml
Lifetime Stree Test Optimizaton 24 days ago
good first issue
microsoft/microsoft-ui-xaml
7.9K

WinUI: a modern UI framework with a rich set of controls and styles to build dynamic and high-performing Windows applications.

C++
#cpp#csharp#desktop#fluent-design#uwp#windows#windows-10#winui#winui3#xaml
Fallback value should be close to original value 28 days ago
bug help wanted area-Materials team-Controls
microsoft/microsoft-ui-xaml
7.9K

WinUI: a modern UI framework with a rich set of controls and styles to build dynamic and high-performing Windows applications.

C++
#cpp#csharp#desktop#fluent-design#uwp#windows#windows-10#winui#winui3#xaml
Icon on MenuFlyoutItem within a dark container turns black on pointer exit (with OS in light mode theme color) 28 days ago
bug help wanted area-Menus team-Controls react-native-windows
microsoft/microsoft-ui-xaml
7.9K

WinUI: a modern UI framework with a rich set of controls and styles to build dynamic and high-performing Windows applications.

C++
#cpp#csharp#desktop#fluent-design#uwp#windows#windows-10#winui#winui3#xaml
Drag&Drop does not work with within Elevated Apps 29 days ago
bug feature proposal help wanted team-Markup product-winui3 area-DragAndDrop team-Core
microsoft/microsoft-ui-xaml
7.9K

WinUI: a modern UI framework with a rich set of controls and styles to build dynamic and high-performing Windows applications.

C++
#cpp#csharp#desktop#fluent-design#uwp#windows#windows-10#winui#winui3#xaml
Proposal: C++/WinRT basic example for each control 29 days ago
feature proposal help wanted area-C++/WinRT
microsoft/microsoft-ui-xaml
7.9K

WinUI: a modern UI framework with a rich set of controls and styles to build dynamic and high-performing Windows applications.

C++
#cpp#csharp#desktop#fluent-design#uwp#windows#windows-10#winui#winui3#xaml
WinUI library projects throws Markup.XamlParseException: The text associated with this error code could not be found. about 1 month ago
bug help wanted team-Markup area-ErrorHandling team-Core
microsoft/microsoft-ui-xaml
7.9K

WinUI: a modern UI framework with a rich set of controls and styles to build dynamic and high-performing Windows applications.

C++
#cpp#csharp#desktop#fluent-design#uwp#windows#windows-10#winui#winui3#xaml
Control Styles should be named 4 months ago
help wanted area-Styling team-Controls wct
microsoft/microsoft-ui-xaml
7.9K

WinUI: a modern UI framework with a rich set of controls and styles to build dynamic and high-performing Windows applications.

C++
#cpp#csharp#desktop#fluent-design#uwp#windows#windows-10#winui#winui3#xaml
CheckBox & RadioButton labels become off-center when text scaling >= ~150%. 5 months ago
bug good first issue help wanted area-UIDesign team-Controls
microsoft/microsoft-ui-xaml
7.9K

WinUI: a modern UI framework with a rich set of controls and styles to build dynamic and high-performing Windows applications.

C++
#cpp#csharp#desktop#fluent-design#uwp#windows#windows-10#winui#winui3#xaml
[C++/WinRT] Can't declare a string in Page.Resources with x:Name set about 1 year ago
bug help wanted area-XamlCompiler team-Markup product-winui3 needs-repro
microsoft/microsoft-ui-xaml
7.9K

WinUI: a modern UI framework with a rich set of controls and styles to build dynamic and high-performing Windows applications.

C++
#cpp#csharp#desktop#fluent-design#uwp#windows#windows-10#winui#winui3#xaml