Castle Windsor ASP.NET Core / Microsoft.Extensions.DependencyInjection Adapter

This library is a Castle Windsor adapter for Microsoft.Extensions.DependencyInjection nuget package. It works for ASP.NET Core and other type of applications.

How To Use?

1. Install Puget Package

Install-Package Castle.Windsor.MsDependencyInjection

2. Change Startup Class For ASP.NET Core, open your Startup class and add these using statements:

using Castle.Windsor;
using Castle.Windsor.MsDependencyInjection;

Find ConfigureServices method:

public void ConfigureServices(IServiceCollection services)
{
    ...
}

Change it like that:

public IServiceProvider ConfigureServices(IServiceCollection services)
{
    ...

    return WindsorRegistrationHelper.CreateServiceProvider(new WindsorContainer(), services);
}

Changed return type from void to IServiceProvider and used WindsorRegistrationHelper.

Keyed Services

The adapter natively supports keyed services without requiring any changes to Castle Windsor. Keyed and non-keyed registrations are fully isolated: resolving IEnumerable<T> returns only non-keyed services, while keyed lookups return only services registered under the requested key.

You register and resolve keyed services exactly as you would with the default Microsoft DI container:

services.AddKeyedSingleton<INotifier, EmailNotifier>("email");
services.AddKeyedSingleton<INotifier, SmsNotifier>("sms");

var provider = WindsorRegistrationHelper.CreateServiceProvider(new WindsorContainer(), services);

var email = provider.GetRequiredKeyedService<INotifier>("email");
var sms = provider.GetKeyedService<INotifier>("sms");

The [FromKeyedServices] and [ServiceKey] constructor attributes are also supported:

public class OrderProcessor
{
    public OrderProcessor([FromKeyedServices("email")] INotifier notifier)
    {
        ...
    }
}

The KeyedService.AnyKey registration moniker is supported as well — a service registered with AnyKey is resolved for any requested key.

Note: This release targets the .NET 10 keyed-services specification. Because of breaking changes in .NET 10 around KeyedService.AnyKey, the adapter implements the latest spec only.

License

MIT