System.Composition.Convention
9.0.7
Prefix Reserved
.NET 8.0
This package targets .NET 8.0. The package is compatible with this framework or higher.
.NET Standard 2.0
This package targets .NET Standard 2.0. The package is compatible with this framework or higher.
.NET Framework 4.6.2
This package targets .NET Framework 4.6.2. The package is compatible with this framework or higher.
There is a newer prerelease version of this package available.
See the version list below for details.
See the version list below for details.
dotnet add package System.Composition.Convention --version 9.0.7
NuGet\Install-Package System.Composition.Convention -Version 9.0.7
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="System.Composition.Convention" Version="9.0.7" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
<PackageVersion Include="System.Composition.Convention" Version="9.0.7" />
<PackageReference Include="System.Composition.Convention" />
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package.
paket add System.Composition.Convention --version 9.0.7
The NuGet Team does not provide support for this client. Please contact its maintainers for support.
#r "nuget: System.Composition.Convention, 9.0.7"
#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.
#:package System.Composition.Convention@9.0.7
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package.
#addin nuget:?package=System.Composition.Convention&version=9.0.7
#tool nuget:?package=System.Composition.Convention&version=9.0.7
The NuGet Team does not provide support for this client. Please contact its maintainers for support.
About
System.Composition.Convention is part of the Managed Extensibility Framework (MEF) 2.0, a composition library for .NET that enables dependency injection through attributes or conventions.
This package simplifies the process of applying consistent patterns for part exports, imports, and metadata by using convention-based configurations. It is useful for scenarios where you want to avoid repetitive attribute-based decoration and instead define conventions for registering types in your composition container.
Key Features
- Configure exports, imports, and metadata for parts using conventions rather than attributes.
- Allows defining conventions through a fluent API, making configuration more flexible and readable.
How to Use
Configure parts for composition without using attributes.
using System.Composition.Convention;
using System.Composition.Hosting;
var conventions = new ConventionBuilder();
// Apply conventions: any class that implements ILogger will be exported as ILogger
conventions
.ForTypesDerivedFrom<ILogger>()
.Export<ILogger>();
var configuration = new ContainerConfiguration()
.WithPart<FileLogger>(conventions)
.WithPart<ConsoleLogger>(conventions);
using CompositionHost container = configuration.CreateContainer();
var loggers = container.GetExports<ILogger>();
foreach (var logger in loggers)
{
logger.Log("Hello, World!");
}
// FileLogger: Hello, World!
// ConsoleLogger: Hello, World!
public interface ILogger
{
void Log(string message);
}
public class FileLogger : ILogger
{
public void Log(string message) => Console.WriteLine($"FileLogger: {message}");
}
public class ConsoleLogger : ILogger
{
public void Log(string message) => Console.WriteLine($"ConsoleLogger: {message}");
}
Main Types
The main types provided by this library are:
System.Composition.Convention.ConventionBuilderSystem.Composition.Convention.PartConventionBuilderSystem.Composition.Convention.ParameterImportConventionBuilder
Additional Documentation
Related Packages
- System.Composition
- System.Composition.AttributedModel
- System.Composition.Hosting
- System.Composition.Runtime
- System.Composition.TypedParts
Feedback & Contributing
System.Composition.Convention is released as open source under the MIT license. Bug reports and contributions are welcome at the GitHub repository.
| Product | Versions 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 was computed. 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. net8.0 is compatible. net8.0-android was computed. net8.0-browser was computed. net8.0-ios was computed. net8.0-maccatalyst was computed. net8.0-macos was computed. net8.0-tvos was computed. net8.0-windows was computed. net9.0 is compatible. net9.0-android was computed. net9.0-browser was computed. net9.0-ios was computed. net9.0-maccatalyst was computed. net9.0-macos was computed. net9.0-tvos was computed. net9.0-windows was computed. net10.0 was computed. net10.0-android was computed. net10.0-browser was computed. net10.0-ios was computed. net10.0-maccatalyst was computed. net10.0-macos was computed. net10.0-tvos was computed. net10.0-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 is compatible. 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)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.
-
.NETFramework 4.6.2
- System.Composition.AttributedModel (>= 9.0.7)
-
.NETStandard 2.0
- System.Composition.AttributedModel (>= 9.0.7)
-
net8.0
- System.Composition.AttributedModel (>= 9.0.7)
-
net9.0
- System.Composition.AttributedModel (>= 9.0.7)
NuGet packages (37)
Showing the top 5 NuGet packages that depend on System.Composition.Convention:
| Package | Downloads |
|---|---|
|
System.Composition
Provides a version of the Managed Extensibility Framework (MEF) that is lightweight and specifically optimized for high throughput scenarios, such as the web. |
|
|
Microsoft.VisualStudio.Utilities
A member of the Visual Studio SDK |
|
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Microsoft.VisualStudio.Shell.Framework
A member of the Visual Studio SDK |
|
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Microsoft.VisualStudio.Shell.15.0
A member of the Visual Studio SDK |
|
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Microsoft.VisualStudio.Imaging
A member of the Visual Studio SDK |
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