Injectio 2.6.2

.NET 7.0 .NET Standard 2.0
dotnet add package Injectio --version 2.6.2
NuGet\Install-Package Injectio -Version 2.6.2
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="Injectio" Version="2.6.2" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add Injectio --version 2.6.2
#r "nuget: Injectio, 2.6.2"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
// Install Injectio as a Cake Addin
#addin nuget:?package=Injectio&version=2.6.2

// Install Injectio as a Cake Tool
#tool nuget:?package=Injectio&version=2.6.2


Source generator that helps register attribute marked services in the dependency injection ServiceCollection

Source generator


  • Transient, Singleton, Scoped service registration
  • Factory registration
  • Module method registration
  • Duplicate Strategy - Skip,Replace,Append
  • Registration Strategy - Self, Implemented Interfaces, Self With Interfaces


Add package

Add the nuget package project to your projects.

dotnet add package Injectio

Prevent dependances from including Injectio

<PackageReference Include="Injectio" PrivateAssets="all" />

Registration Attributes

Place registration attribute on class. The class will be discovered and registered.

  • [RegisterSingleton] Marks the class as a singleton service
  • [RegisterScoped] Marks the class as a scoped service
  • [RegisterTransient] Marks the class as a transient service
  • [RegisterServices] Marks the method to be called to register services
Attribute Properties
Property Description
ImplementationType The type that implements the service. If not set, the class the attribute is on will be used.
ServiceType The type of the service. If not set, the Registration property used to determine what is registered.
Factory Name of a factory method to create new instances of the service implementation.
Duplicate How the generator handles duplicate registrations. See Duplicate Strategy
Registration How the generator determines what to register. See Registration Strategy
Duplicate Strategy
Value Description
Skip Skips registrations for services that already exists
Replace Replaces existing service registrations
Append Appends a new registration for existing services
Registration Strategy
Value Description
Self Registers each matching concrete type as itself
ImplementedInterfaces Registers each matching concrete type as all of its implemented interfaces
SelfWithInterfaces Registers each matching concrete type as all of its implemented interfaces and itself
Singleton services
public class SingletonService : IService { }

Explicit service type

[RegisterSingleton(ServiceType = typeof(IService))]
public class SingletonService : IService { }

Support resolving multiple services with IEnumerable<T>

[RegisterSingleton(Duplicate = DuplicateStrategy.Append)]
public class SingletonService : IService { }
Scoped Services
public class ScopedService : IService { }
Transient Services
public class TransientService : IService { }
[RegisterTransient(Factory = nameof(ServiceFactory))]
public class FactoryService : IFactoryService
    private readonly IService _service;

    public FactoryService(IService service)
        _service = service;

    public static IFactoryService ServiceFactory(IServiceProvider serviceProvider)
        return new FactoryService(serviceProvider.GetService<IService>());
Generic Attributes

You can use generic attributes to register services if your project targets net7.0.

<Project Sdk="Microsoft.NET.Sdk">

Generic attributes allow declaration to be more compact by avoiding the typeof calls

public class ServiceImplementation : IService { }
Open Generic
[RegisterSingleton(ImplementationType = typeof(OpenGeneric<>), ServiceType = typeof(IOpenGeneric<>))]
public class OpenGeneric<T> : IOpenGeneric<T> { }
Register Method

When the service registration is complex, use the RegisterServices attribute on a method that has a parameter of IServiceCollection or ServiceCollection

public class RegistrationModule
    public static void Register(IServiceCollection services)
        services.TryAddTransient<IModuleService, ModuleService>();
Add to container

The source generator creates an extension method with all the discovered services registered. Call the generated extension method to add the services to the container. The extension method will be called Add[AssemblyName]. The assembly name will have the dots removed.

var services = new ServiceCollection();

Override the extension method name by using the InjectioName MSBuild property.

var services = new ServiceCollection();
Registration Tags

Control what is registered when calling the generated extension method using Tags

Tag the service

public interface IServiceTag

[RegisterSingleton(Tags = "Client,FrontEnd")]
public class ServiceTag : IServiceTag

Specify tags when adding to service collection. Note, if no tags specified, all services are registered

var services = new ServiceCollection();
Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 was computed.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 is compatible.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed. 
.NET Core netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.0 is compatible.  netstandard2.1 was computed. 
.NET Framework net461 was computed.  net462 was computed.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen40 was computed.  tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Additional computed target framework(s)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last updated
2.6.2 1,590 8/9/2023
2.6.1 427 7/29/2023
2.6.0 83 7/29/2023
2.5.87 4,742 3/25/2023
2.5.65 2,305 1/30/2023
2.0.54 1,101 1/2/2023
2.0.52 208 1/2/2023
2.0.43 290 12/28/2022
1.0.33 948 10/25/2022
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1.0.23 356 10/20/2022
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1.0.16 301 10/5/2022
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1.0.10 291 10/4/2022
1.0.8 333 9/25/2022