xaml-csharp-development-skill-for-avalonia

WinUI Style/Resource/Tree Diagnostics to Avalonia Runtime Inspection

Table of Contents

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

Scope and APIs

Primary WinUI APIs:

Primary Avalonia APIs:

Concept Mapping

WinUI idiom Avalonia idiom
inspect parent/child hierarchy inspect visual + logical trees via extensions
inspect applied styles in tooling inspect applied styles via diagnostics APIs + DevTools
inspect runtime resource values inspect effective property/resource diagnostics

Conversion Example

WinUI XAML:

<ListView x:Name="ResultsList" />

WinUI C#:

DependencyObject? current = ResultsList;
while (current is not null)
{
    current = VisualTreeHelper.GetParent(current);
}

Avalonia XAML:

<ListBox x:Name="ResultsList" />

Avalonia C#:

var visualParent = ResultsList.GetVisualParent();
var logicalParent = ResultsList.GetLogicalParent();

var styleDiagnostics = ResultsList.GetStyleDiagnostics();
var valueDiagnostics = ResultsList.GetDiagnostic(Control.BackgroundProperty);

Migration Notes

  1. Use both logical and visual tree inspection when style/resource behavior diverges.
  2. Prefer deterministic diagnostic snapshots in tests for regression safety.
  3. Keep diagnostics and DevTools hooks out of performance-critical production paths.
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