microsoft/XamlBehaviors

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This is the official home for WinUI/UWP XAML Behaviors on GitHub.

Stars: 789
Forks: 122
Open beginner issues: 0
Indexed issues: 58
Avg merge: 4h 25m
Merged PRs (30d): 5

Dominant language: C#
License: MIT
Last GitHub push: Sep 10, 2026
Latest indexed: Sep 19, 2026
Contributing guide: No contributing guide
Code of conduct: Code of conduct
Beginner labels: No beginner labels indexed

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58 open issues indexed

Wiki/docs are outdated and poorly indexed. Open

Difficulty 3/5 1-2 days Newbie friendliness 38/100

microsoft/XamlBehaviors#308 · 2 reactions · Opened May 26, 2025
Add this project to Community Toolkit organization Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

microsoft/XamlBehaviors#307 · 1 comment · Opened May 23, 2025
Unseal triggers and actions to enable extensibility Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

microsoft/XamlBehaviors#306 · Opened Apr 22, 2025
Removal of the Design DLL makes Drag&Drop from Blend 2022 break Open

Difficulty 4/5 3-5 days Newbie friendliness 28/100

microsoft/XamlBehaviors#302 · Opened Feb 7, 2025
Nuget description of WinUI package is outdated? Open

Difficulty 1/5 Under an hour Newbie friendliness 48/100

microsoft/XamlBehaviors#301 · Opened Jan 28, 2025
PlaySoundAction - expose a `MediaFailed` event Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

microsoft/XamlBehaviors#288 · Opened Nov 19, 2024
Use Global Usings and aliases to reduce #ifdef usage Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

microsoft/XamlBehaviors#285 · 1 comment · 1 reaction · Opened Nov 15, 2024
GlobalSuppression.cs marked as binary file Open

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

microsoft/XamlBehaviors#283 · Opened Nov 15, 2024
Need Dot Net Core 8.0 support for "Microsoft.Xaml.Behaviors.Uwp.Managed" NuGet package Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

microsoft/XamlBehaviors#278 · 1 comment · Opened Sep 19, 2024
WinUI3 fires Unloaded event incorrectly, causing Behaviors to be detached and not re-attach to a UI element that is still in use Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

microsoft/XamlBehaviors#251 · 5 reactions · Opened May 20, 2024
wpf listview's selectionchanged is fired but the command is not fired. Open

Difficulty 3/5 1-2 days Newbie friendliness 38/100

microsoft/XamlBehaviors#241 · 1 comment · Opened May 24, 2023
ComboBox SelectionChanged command handler is not fired. Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

microsoft/XamlBehaviors#240 · Opened Mar 26, 2023
EventTriggerBehavior does not fire bound command in DataTemplate Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

microsoft/XamlBehaviors#239 · 10 comments · Opened Mar 2, 2023
Native version missing features Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

microsoft/XamlBehaviors#230 · Opened Jul 26, 2022
EventTriggerBehavior EventName="Loaded" doesn't fires after third update / not reliable Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

microsoft/XamlBehaviors#229 · Opened Jul 21, 2022
cpp winui3 Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

microsoft/XamlBehaviors#227 · Opened Mar 30, 2022
Custom Behaviors Documentation Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

microsoft/XamlBehaviors#226 · 1 comment · Opened Jan 11, 2022
Xaml parse exception in WinUI 3 Open

Difficulty 4/5 3-5 days Newbie friendliness 20/100

microsoft/XamlBehaviors#221 · 2 comments · Opened Aug 24, 2021
NavigationViewItem with Command Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

microsoft/XamlBehaviors#220 · 2 comments · Opened Jun 23, 2021
Cannot load Assembly 'Microsoft.Xaml.Interactivity' Open

Difficulty 4/5 3-5 days Newbie friendliness 20/100

microsoft/XamlBehaviors#216 · 2 comments · Opened Mar 20, 2021
PRI257 warning changing the default language in UWP and using with AppCenter.Crashes Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

microsoft/XamlBehaviors#215 · Opened Mar 11, 2021
Support CallMethodAction with Custom Parameter Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

microsoft/XamlBehaviors#214 · 1 comment · 2 reactions · Opened Mar 4, 2021
Cannot install Microsoft.Xaml.Behaviors.WinUI.Managed package in WinUI UWP project Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

microsoft/XamlBehaviors#210 · 7 comments · 1 reaction · Opened Jan 12, 2021
Use MediaPlayer instead of MediaElement if available for PlaySoundAction? Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

microsoft/XamlBehaviors#208 · Opened Dec 28, 2020
Microsoft.Xaml.Behaviors.WinUI.Managed is not supported on WinUI UWP Open

Difficulty 4/5 3-5 days Newbie friendliness 20/100

microsoft/XamlBehaviors#206 · 5 comments · 1 reaction · Opened Nov 24, 2020
Binding to Window Activated or Loaded event in WinUI 3 Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

microsoft/XamlBehaviors#193 · 1 comment · Opened Aug 24, 2020
Is it not possible to specify a TargetName for a ControlStoryboardAction.Play type event? Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

microsoft/XamlBehaviors#191 · 1 reaction · Opened Jul 23, 2020
Using EventTriggerBehavior for Pointer[Entered|Exited] triggers a crash in Microsoft.UI.Xaml.dll in UWP Release Open

Difficulty 4/5 3-5 days Newbie friendliness 28/100

microsoft/XamlBehaviors#184 · 1 comment · 6 reactions · Opened Apr 8, 2020
Provide Directions for Running Sample Project Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

microsoft/XamlBehaviors#183 · Opened Apr 2, 2020
ThemeAnimations do not respect the UISettings.AnimationsEnabled flag Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

microsoft/XamlBehaviors#169 · 2 comments · 1 reaction · Opened Feb 19, 2020
Could not Compile in C++/WinRT Project Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

microsoft/XamlBehaviors#161 · Opened Aug 8, 2019
managed universal app tries to load Microsoft.Xaml.Interactivity.winmd - and fails Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

microsoft/XamlBehaviors#160 · 1 comment · Opened Jun 27, 2019
NavigateToPageAction in Nested Frame? Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

microsoft/XamlBehaviors#153 · 1 comment · Opened Feb 9, 2019
Cannot enable AllowPartiallyTrustedCallers Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

microsoft/XamlBehaviors#151 · Opened Jan 31, 2019
Slider behavior Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

microsoft/XamlBehaviors#149 · Opened Dec 26, 2018
Put this entire repo into Microsoft.UI.Xaml Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

microsoft/XamlBehaviors#147 · 11 comments · 15 reactions · Opened Dec 11, 2018
DataTriggerBehavior does not work with all numeric types Open

microsoft/XamlBehaviors#140 · 1 comment · 1 assignee · Opened Nov 1, 2018
Invokecommandaction invalid Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

microsoft/XamlBehaviors#138 · Opened Oct 12, 2018
Interfaces as WinRT types? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

microsoft/XamlBehaviors#137 · Opened Sep 27, 2018
The package does not contain any assembly references or content files that are compatible with that framework. Open

Difficulty 4/5 3-5 days Newbie friendliness 20/100

microsoft/XamlBehaviors#132 · 1 comment · Opened Aug 1, 2017
CI builds fail at runtime with missing Behaviors Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

microsoft/XamlBehaviors#129 · 1 comment · Opened Jun 22, 2017
ControlStoryboardAction in DataTemplate has inconsistent behavior in Anniversary Update Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

microsoft/XamlBehaviors#127 · 1 comment · Opened Apr 10, 2017
DataTriggerBehavior doesn't evaluate initially, instead it will wait until the bound value has changed Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

microsoft/XamlBehaviors#125 · 2 comments · Opened Feb 5, 2017
DataTriggerBehavior fires only first time Open

Difficulty 3/5 1-2 days Newbie friendliness 38/100

microsoft/XamlBehaviors#124 · 1 comment · Opened Jan 12, 2017
AssociatedObject is sometimes null within ItemsControl ItemTemplate Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

microsoft/XamlBehaviors#120 · 3 comments · Opened Dec 7, 2016
Combine DragPositionBehavior and Resize? Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

microsoft/XamlBehaviors#115 · Opened Oct 25, 2016
Support for Async/Await in Actions Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

microsoft/XamlBehaviors#112 · 1 comment · Opened Sep 20, 2016
DataTriggerBehavior doesn't appear to work with Nullable types Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

microsoft/XamlBehaviors#95 · 1 comment · Opened Mar 2, 2016
Wiki: Link points to wrong place Open

Difficulty 1/5 Under an hour Newbie friendliness 35/100

microsoft/XamlBehaviors#94 · 1 comment · Opened Feb 27, 2016
DataTriggerBehavior doesn't support enum comparison Open

Difficulty 3/5 1-2 days Newbie friendliness 30/100

microsoft/XamlBehaviors#84 · 4 comments · Opened Feb 19, 2016

microsoft/XamlBehaviors

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