xaml-csharp-development-skill-for-avalonia

WinUI InfoBar, TeachingTip, and Inline Guidance Surfaces to Avalonia

Table of Contents

1. Scope and APIs
2. Concept Mapping
3. Conversion Example
4. Migration Notes

Scope and APIs

Primary WinUI APIs:

• InfoBar, TeachingTip, IsOpen, Severity, ActionButton

Primary Avalonia APIs:

• WindowNotificationManager, Flyout, ToolTip, inline banners

Concept Mapping

WinUI idiom	Avalonia idiom
WinUI control and state pipeline	Avalonia control themes, selectors, and transitions
WinUI command/input surfaces	Avalonia commands + KeyBinding/routed input
WinUI resource/theme flow	Avalonia resource dictionaries + ThemeVariant

Conversion Example

WinUI XAML:

<InfoBar IsOpen="{x:Bind ViewModel.IsInfoOpen, Mode=TwoWay}" Severity="Warning" Title="Unsaved changes" />

WinUI C#:

var info = new InfoBar { IsOpen = true };

Avalonia XAML:

<Border IsVisible="{Binding IsInfoOpen}" Classes="warning-banner"><TextBlock Text="Unsaved changes" /></Border>

Avalonia C#:

var manager = new WindowNotificationManager(topLevel); manager.Show(new Notification("Warning", "Unsaved changes", NotificationType.Warning));

Migration Notes

1. Preserve behavior and interaction contracts before visual refinements.
2. Port hot paths with explicit UI-thread and invalidation discipline.
3. Prefer typed compiled bindings and deterministic state flow in migrated views.

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