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78 lines
2.7 KiB
78 lines
2.7 KiB
## About
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<!-- A description of the package and where one can find more documentation -->
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Provides the Managed Extensibility Framework (MEF) 2.0, a lightweight, attribute-driven Dependency Injection (DI) container.
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MEF simplifies the composition of applications by allowing components to be loosely coupled and dynamically discovered.
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This package supports the development of modular and maintainable applications by enabling parts to be composed at runtime.
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## Key Features
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<!-- The key features of this package -->
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* Components are discovered and composed using attributes.
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* Provides dependency injection capabilities for loosely coupled modules.
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## How to Use
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<!-- A compelling example on how to use this package with code, as well as any specific guidelines for when to use the package -->
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Running code from a discovered component.
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```csharp
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using System.Composition;
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using System.Composition.Hosting;
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var configuration = new ContainerConfiguration().WithPart<Service>();
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using var container = configuration.CreateContainer();
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var service = container.GetExport<Service>();
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service.Execute();
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// Output: Service is running!
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[Export]
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public class Service
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{
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public void Execute() => Console.WriteLine("Service is running!");
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}
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```
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## Main Types
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<!-- The main types provided in this library -->
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The main types provided by this library are:
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* `System.Composition.ExportAttribute`
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* `System.Composition.ImportAttribute`
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* `System.Composition.Convention.ConventionBuilder`
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* `System.Composition.Hosting.CompositionHost`
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* `System.Composition.CompositionContext`
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* `System.Composition.CompositionContextExtensions`
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## Additional Documentation
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<!-- Links to further documentation. Remove conceptual documentation if not available for the library. -->
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* [API documentation](https://learn.microsoft.com/dotnet/api/system.composition)
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* [Managed Extensibility Framework (MEF)](https://learn.microsoft.com/dotnet/framework/mef/)
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## Related Packages
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<!-- The related packages associated with this package -->
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* [System.Composition.AttributedModel](https://www.nuget.org/packages/System.Composition.AttributedModel)
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* [System.Composition.Convention](https://www.nuget.org/packages/System.Composition.Convention)
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* [System.Composition.Hosting](https://www.nuget.org/packages/System.Composition.Hosting)
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* [System.Composition.Runtime](https://www.nuget.org/packages/System.Composition.Runtime)
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* [System.Composition.TypedParts](https://www.nuget.org/packages/System.Composition.TypedParts)
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## Feedback & Contributing
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<!-- How to provide feedback on this package and contribute to it -->
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System.Composition is released as open source under the [MIT license](https://licenses.nuget.org/MIT).
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Bug reports and contributions are welcome at [the GitHub repository](https://github.com/dotnet/runtime).
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