---
name: avalonia-layout-zafiro
description: "Guidelines for modern Avalonia UI layout using Zafiro.Avalonia, emphasizing shared styles, generic components, and avoiding XAML redundancy."
risk: critical
source: community
date_added: "2026-02-27"
---

# Avalonia Layout with Zafiro.Avalonia

> Master modern, clean, and maintainable Avalonia UI layouts.
> **Focus on semantic containers, shared styles, and minimal XAML.**

## 🎯 Selective Reading Rule

**Read ONLY files relevant to the layout challenge!**

---

The five guides below are bundled; the author-local Angor solution is not. Examples are partial and need the actual Avalonia/Zafiro/package versions and XML namespace declarations; UntouchedClassBehavior and icon resources must exist in that installation. Do not assume MultiBinding supplies logical And/Or without a suitable converter, or merge style files as ResourceDictionary resources when they contain Styles. Use StyleInclude for style collections and ResourceInclude for resource dictionaries as appropriate to the file root. Keep icons accessible, preserve focus/keyboard behavior and test light/dark themes, text scaling and localization. Avoiding converters/code-behind is a design preference, not a universal correctness or performance rule.

## 📑 Content Map

| File | Description | When to Read |
|------|-------------|--------------|
| `themes.md` | Theme organization and shared styles | Setting up or refining app themes |
| `containers.md` | Semantic containers (`HeaderedContainer`, `EdgePanel`, `Card`) | Structuring views and layouts |
| `icons.md` | Icon usage with `IconExtension` and `IconOptions` | Adding and customizing icons |
| `behaviors.md` | `Xaml.Interaction.Behaviors` and avoiding Converters | Implementing complex interactions |
| `components.md` | Generic components and avoiding nesting | Creating reusable UI elements |

---

## 🔗 Related Project (Exemplary Implementation)

For a real-world example, refer to the **Angor** project:
`/mnt/fast/Repos/angor/src/Angor/Avalonia/Angor.Avalonia.sln`

---

## ✅ Checklist for Clean Layouts

- [ ] **Used semantic containers?** (e.g., `HeaderedContainer` instead of `Border` with manual header)
- [ ] **Avoided redundant properties?** Use shared styles in `axaml` files.
- [ ] **Minimized nesting?** Flatten layouts using `EdgePanel` or generic components.
- [ ] **Icons via extension?** Use `{Icon fa-name}` and `IconOptions` for styling.
- [ ] **Behaviors over code-behind?** Use `Interaction.Behaviors` for UI-logic.
- [ ] **Avoided Converters?** Prefer ViewModel properties or Behaviors unless necessary.

---

## ❌ Anti-Patterns

**DON'T:**
- Use hardcoded colors or sizes (literals) in views.
- Create deep nesting of `Grid` and `StackPanel`.
- Repeat visual properties across multiple elements (use Styles).
- Use `IValueConverter` for simple logic that belongs in the ViewModel.

**DO:**
- Use `DynamicResource` for colors and brushes.
- Extract repeated layouts into generic components.
- Leverage `Zafiro.Avalonia` specific panels like `EdgePanel` for common UI patterns.

## When to Use
This skill is applicable to execute the workflow or actions described in the overview.

## Limitations
- Use this skill only when the task clearly matches the scope described above.
- Do not treat the output as a substitute for environment-specific validation, testing, or expert review.
- Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.