Wrote a small helper class with extension methods to register the Nuclex.Avalonia MVVM services to a Microsoft.Extensions.DependencyInjection IoC container

Source/MvvmExtensions.cs

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+#region Apache License 2.0
+/*
+Nuclex .NET Framework
+Copyright (C) 2002-2024 Markus Ewald / Nuclex Development Labs
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+#endregion // Apache License 2.0
+
+using System;
+
+using Microsoft.Extensions.DependencyInjection;
+
+using Nuclex.Avalonia.AutoBinding;
+using Nuclex.Avalonia.Messages;
+
+namespace Nuclex.Avalonia.DependencyInjection {
+
+  /// <summary>Sets up the service bindings for an MVVM-based application</summary>
+  public static class MvvmExtensions {
+
+    /// <summary>Registers all MVVM supporting services for a WinForms application</summary>
+    /// <param name="services">Service collection the services will be registered to</param>
+    /// <returns>The service collection for method chaining</returns>
+    public static IServiceCollection AddMvvm(this IServiceCollection services) {
+
+      // Allow displaying message boxes via the AvaloniaMessagePresenter which wraps
+      // the MessageBox.Avalonia library
+      services.AddSingleton<IMessageService, AvaloniaMessagePresenter>();
+
+      // The window manager keeps track of which Window is in the foreground
+      // and handles opening modal or modeless windows for which it either
+      // binds provided view models or requests new instances.
+      services.AddSingleton<WindowManager, DependencyInjectedWindowManager>();
+
+      // The IWindowManager is the main interface that should be used to
+      // create new windows and dialogs
+      services.AddSingleton<IWindowManager>(
+        sp => sp.GetRequiredService<WindowManager>()
+      );
+
+      // The IActiveWindowTracker is a very simple interface to let Windows Forms
+      // extensions that need to display message boxes or other things query for
+      // the currently active top-level window.
+      services.AddSingleton<IActiveWindowTracker>(
+        sp => sp.GetRequiredService<WindowManager>()
+      );
+
+      // The auto binder uses convention-over-configuration to automatically
+      // establish data bindings or call view model methods that share their name
+      // with button controls.
+      services.AddSingleton<IAutoBinder, ConventionBinder>();
+
+      return services;
+
+    }
+
+    /// <summary>Registers all MVVM supporting services for a WinForms application</summary>
+    /// <param name="services">Service collection the services will be registered to</param>
+    /// <returns>The service collection for method chaining</returns>
+    public static IServiceCollection AddCommonDialogs(this IServiceCollection services) {
+
+      // Implementation of the message service that uses plain MessageBoxes
+      // from the Win32 API to display messages to the user
+      services.AddSingleton<IMessageService, AvaloniaMessagePresenter>();
+
+      return services;
+
+    }
+
+  }
+
+} // namespace Nuclex.Avalonia.DependencyInjection