xaml-csharp-development-skill-for-avalonia

WinUI Progress, Slider, ScrollViewer, and Feedback Controls to Avalonia

Table of Contents

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

Scope and APIs

Primary WinUI APIs:

• ProgressBar, ProgressRing, Slider, ScrollViewer

Primary Avalonia APIs:

• ProgressBar, Slider, ScrollViewer, refresh/feedback patterns

Concept Mapping

WinUI idiom	Avalonia idiom
WinUI control/template/state pipeline	Avalonia control theme/style/selector pipeline
x:Bind or {Binding} data flow	{CompiledBinding ...} and typed x:DataType flow
WinUI layout/render invalidation model	Avalonia InvalidateMeasure/InvalidateArrange/InvalidateVisual model

Conversion Example

WinUI XAML:

<Page
    x:Class="MyApp.Views.SamplePage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:MyApp.Controls">
  <ProgressBar Value="{x:Bind ViewModel.Progress, Mode=OneWay}" />
</Page>

WinUI C#:

var view = new ProgressBar();

Avalonia XAML:

<UserControl xmlns="https://github.com/avaloniaui"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:vm="using:MyApp.ViewModels"
             xmlns:local="using:MyApp.Controls"
             x:DataType="vm:SampleViewModel">
  <ProgressBar Value="{CompiledBinding Progress}" />
</UserControl>

Avalonia C#:

var progress = new ProgressBar { Value = viewModel.Progress };

Migration Notes

1. Start by porting behavior and state contracts first, then restyle and retune visuals.
2. Prefer typed compiled bindings and avoid reflection-heavy dynamic binding paths.
3. Keep UI-thread updates explicit when porting WinUI async/event flows.

This site is open source. Improve this page.