avalonia-viewmodels-zafiro

by sickn33

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SKILL.md About

---
name: avalonia-viewmodels-zafiro
description: "Optimal ViewModel and Wizard creation patterns for Avalonia using Zafiro and ReactiveUI."
risk: none
source: community
date_added: "2026-02-27"
---

# Avalonia ViewModels with Zafiro

This skill provides a set of best practices and patterns for creating ViewModels, Wizards, and managing navigation in Avalonia applications, leveraging the power of **ReactiveUI** and the **Zafiro** toolkit.

## Core Principles

1.  **Functional-Reactive Approach**: Use ReactiveUI (`ReactiveObject`, `WhenAnyValue`, etc.) to handle state and logic.
2.  **Enhanced Commands**: Utilize `IEnhancedCommand` for better command management, including progress reporting and name/text attributes.
3.  **Wizard Pattern**: Implement complex flows using `SlimWizard` and `WizardBuilder` for a declarative and maintainable approach.
4.  **Automatic Section Discovery**: Use the `[Section]` attribute to register and discover UI sections automatically.
5.  **Clean Composition**: map ViewModels to Views using `DataTypeViewLocator` and manage dependencies in the `CompositionRoot`.

## Guides

- [ViewModels & Commands](viewmodels.md): Creating robust ViewModels and handling commands.
- [Wizards & Flows](wizards.md): Building multi-step wizards with `SlimWizard`.
- [Navigation & Sections](navigation_sections.md): Managing navigation and section-based UIs.
- [Composition & Mapping](composition.md): Best practices for View-ViewModel wiring and DI.

## Example Reference

For real-world implementations, refer to the **Angor** project:
- `CreateProjectFlowV2.cs`: Excellent example of complex Wizard building.
- `HomeViewModel.cs`: Simple section ViewModel using functional-reactive commands.

## 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.