Issues

WinUI Windowing: Update new windowing APIs to support mixing with AppWindow/win32 calls and harden reentrancy scenarios

Task

microsoft/microsoft-ui-xaml#12512 · opened

on Nov 2, 2026

1

[Bug] ItemsView with LinedFlowLayout crashes with native access violation during repeated recreation

Bug

microsoft/microsoft-ui-xaml#12495 · opened

on Oct 31, 2026

1

Acrylic Brush For Window Is Unusable.

Bug

microsoft/microsoft-ui-xaml#12493 · opened

on Oct 31, 2026

4

IncludeGeneratedXamlCompileItemsForDesignTime makes MSBuildWorkspace (dotnet format) compile XAML-generated code twice

Bug

microsoft/microsoft-ui-xaml#12503 · opened

on Oct 31, 2026

1

TableView test pages leak after navigation, starving UIA on chk builds

microsoft/microsoft-ui-xaml#12491 · opened

on Oct 30, 2026

1

ScrollView / ItemsRepeater with StackLayout crashes during animated ScrollToTop after mouse wheel scrolling

Bug

microsoft/microsoft-ui-xaml#12490 · opened

on Oct 30, 2026

1

ItemsRepeater removed from the visual tree throws E_FAIL ("Unspecified error") on later ItemsSource changes once a GC has run

Bug

microsoft/microsoft-ui-xaml#12488 · opened

on Oct 30, 2026

1

[TableView] A TableViewSource with GroupBy applied is never released after its TableView unloads

microsoft/microsoft-ui-xaml#12474 · opened

on Oct 29, 2026

1

[TableView] Adding 10,000 rows one at a time with Sort and Filter applied freezes the UI for about 3 minutes

microsoft/microsoft-ui-xaml#12473 · opened

on Oct 29, 2026

1

[TableView] Adding rows one at a time to a grouped or hierarchical TableViewSource regroups the whole collection on every Add

microsoft/microsoft-ui-xaml#12472 · opened

on Oct 29, 2026

1

Window dragging is horribly broken in winui3 2.6.4

Bug

microsoft/microsoft-ui-xaml#12471 · opened

on Oct 29, 2026

9

TableView: Right-clicking near the expand arrow in the Name cell shows the wrong menu

Bug

microsoft/microsoft-ui-xaml#12470 · opened

on Oct 29, 2026

1

Proposal: Please reconsider and improve the development of the PagerControl control.

Feature

microsoft/microsoft-ui-xaml#12465 · opened

on Oct 29, 2026

1

Unpackaged WinUI 3 window keeps a stale frame after moving to a monitor with a different scale; any interaction then redraws controls at the wrong size over it (2.3.1 and 2.6.4; fine on 2.5.4-experimental)

microsoft/microsoft-ui-xaml#12464 · opened

on Oct 29, 2026

1

TitleBar fails fast when the window's first layout happens while it's minimised

microsoft/microsoft-ui-xaml#12459 · opened

on Oct 28, 2026

1

TableView: FindItemByProperty fails to resolve virtualized group headers and aborts on realization failure

microsoft/microsoft-ui-xaml#12457 · opened

on Oct 28, 2026

1

[TableView] Selection indicator stays on the keyboard row after expanding or collapsing another row with the mouse (Grouped hierarchy)

microsoft/microsoft-ui-xaml#12456 · opened

on Oct 28, 2026

1

[TableView] Grouping hierarchy roots by department does not indent child rows under their parent

microsoft/microsoft-ui-xaml#12455 · opened

on Oct 28, 2026

1

[TableView] Sample: below about 640 px window width the Back and menu buttons draw over the page title

microsoft/microsoft-ui-xaml#12453 · opened

on Oct 28, 2026

1

[TableView] Sample: "Select first row" on an empty table says every row is hidden in a collapsed group

microsoft/microsoft-ui-xaml#12452 · opened

on Oct 28, 2026

1

[TableView] Sample: Grouped rows "Expansion" readout stays "All expanded" when groups are collapsed through UI Automation

microsoft/microsoft-ui-xaml#12451 · opened

on Oct 28, 2026

1

[TableView] Sample: row accessible name repeats the person's name because the photo cell is named after the person

microsoft/microsoft-ui-xaml#12450 · opened

on Oct 28, 2026

1

[TableView] Vertical scroll percent reports 92-98% when the last row is fully visible (variable-height rows)

microsoft/microsoft-ui-xaml#12449 · opened

on Oct 28, 2026

1

[TableView] UI Automation AddToSelection in Single selection mode replaces the selection instead of failing

microsoft/microsoft-ui-xaml#12448 · opened

on Oct 28, 2026

2

[TableView] Tabbing back into the table goes to the first row instead of the last focused row

microsoft/microsoft-ui-xaml#12447 · opened

on Oct 28, 2026

1

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Repository navigation

Issues

WinUI Windowing: Update new windowing APIs to support mixing with AppWindow/win32 calls and harden reentrancy scenarios

[Bug] ItemsView with LinedFlowLayout crashes with native access violation during repeated recreation

Acrylic Brush For Window Is Unusable.

IncludeGeneratedXamlCompileItemsForDesignTime makes MSBuildWorkspace (dotnet format) compile XAML-generated code twice

TableView test pages leak after navigation, starving UIA on chk builds

ScrollView / ItemsRepeater with StackLayout crashes during animated ScrollToTop after mouse wheel scrolling

ItemsRepeater removed from the visual tree throws E_FAIL ("Unspecified error") on later ItemsSource changes once a GC has run

[TableView] A TableViewSource with GroupBy applied is never released after its TableView unloads

[TableView] Adding 10,000 rows one at a time with Sort and Filter applied freezes the UI for about 3 minutes

[TableView] Adding rows one at a time to a grouped or hierarchical TableViewSource regroups the whole collection on every Add

Window dragging is horribly broken in winui3 2.6.4

TableView: Right-clicking near the expand arrow in the Name cell shows the wrong menu

Proposal: Please reconsider and improve the development of the PagerControl control.

Unpackaged WinUI 3 window keeps a stale frame after moving to a monitor with a different scale; any interaction then redraws controls at the wrong size over it (2.3.1 and 2.6.4; fine on 2.5.4-experimental)

TitleBar fails fast when the window's first layout happens while it's minimised

TableView: FindItemByProperty fails to resolve virtualized group headers and aborts on realization failure

[TableView] Selection indicator stays on the keyboard row after expanding or collapsing another row with the mouse (Grouped hierarchy)

[TableView] Grouping hierarchy roots by department does not indent child rows under their parent

[TableView] Sample: below about 640 px window width the Back and menu buttons draw over the page title

[TableView] Sample: "Select first row" on an empty table says every row is hidden in a collapsed group

[TableView] Sample: Grouped rows "Expansion" readout stays "All expanded" when groups are collapsed through UI Automation

[TableView] Sample: row accessible name repeats the person's name because the photo cell is named after the person

[TableView] Vertical scroll percent reports 92-98% when the last row is fully visible (variable-height rows)

[TableView] UI Automation AddToSelection in Single selection mode replaces the selection instead of failing

[TableView] Tabbing back into the table goes to the first row instead of the last focused row