Getting Started

Coming Soon

Until we get our own Visual Studio Template extension completed, it's recommended to use the Avalonia Template to make adding Window and UserControl views easier - VS 2019/2017, VS 2022.

Basic Configuration

Though the Main entry point of your Avalonia application remains the same, you must make a few minor changes to your App.xaml.cs file.

When your Prism.Avalonia app starts up, the following 3 methods are invoked inside your App class in this order:

1. ConfigureViewModelLocator()
2. Initialize();
3. OnInitialized();

App.xaml.cs

1. partial class App - Inherit from PrismApplication instead of, Application
2. Initialize() method, add base.Initialize();
3. Remove OnFrameworkInitializationCompleted() method. Prism.Avalonia takes care of this for you.

using System;
using Avalonia;
using Avalonia.Markup.Xaml;
using Prism.DryIoc;
using Prism.Ioc;
using Prism.Regions;

namespace SampleMvvmApp;

/// <summary>Application entry point.</summary>
public class App : PrismApplication
{
    public override void Initialize()
    {
        AvaloniaXamlLoader.Load(this);

        // Initializes Prism.Avalonia
        base.Initialize();
    }

    /// <summary>Register Services and Views.</summary>
    /// <param name="containerRegistry"></param>
    protected override void RegisterTypes(IContainerRegistry containerRegistry)
    {
        // Invoked by base.Initialize()
        // ...
    }

    /// <summary>User interface entry point, called after Register and ConfigureModules.</summary>
    /// <returns>Startup View.</returns>
    protected override IAvaloniaObject CreateShell()
    {
        Console.WriteLine("CreateShell()");
        return Container.Resolve<MainWindow>();
    }

    /// <summary>Called after Initialize.</summary>
    protected override void OnInitialized()
    {
        // Register Views to the Region it will appear in. Don't register them in the ViewModel.
        var regionManager = Container.Resolve<IRegionManager>();

        // ...
    }
}

Registering Views

Coming Soon

Defining a View

Whether it's the main Window or a UserControl the following base properties must be set in the root element.

In upcoming releases, you no longer need to specify the AutoWireViewModel property, as it will be automatically detected.

• xmlns:prism="http://prismlibrary.com/"
• prism:ViewModelLocator.AutoWireViewModel="True"
• x:Class="NAMESPACE.CLASSNAME"

Sample:

<Window xmlns="https://github.com/avaloniaui"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:core="clr-namespace:SampleMvvmApp;assembly=SampleMvvmApp"
        xmlns:views="using:SampleMvvmApp.Views"
        xmlns:prism="http://prismlibrary.com/"
        prism:ViewModelLocator.AutoWireViewModel="True"
        x:Class="SampleMvvmApp.Views.MainWindow"
        Title="Sample Application"
        Height="500" Width="700">