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System.ComponentModel.Composition package icon

System.ComponentModel.Composition

This namespace provides classes that constitute the core of the Managed Extensibility Framework, or MEF. Commonly Used Types: System.ComponentModel.Composition.ChangeRejectedException System.ComponentModel.Composition.CompositionContractMismatchException System.ComponentModel.Composition.CompositionError System.ComponentModel.Composition.CompositionException System.ComponentModel.Composition.ExportAttribute System.ComponentModel.Composition.ImportAttribute System.ComponentModel.Composition.ImportCardinalityMismatchException System.ComponentModel.Composition.Hosting.AggregateCatalog System.ComponentModel.Composition.Hosting.ApplicationCatalog System.ComponentModel.Composition.Hosting.AssemblyCatalog System.ComponentModel.Composition.Hosting.CompositionContainer System.ComponentModel.Composition.Primitives.ComposablePartException System.ComponentModel.Composition.Primitives.ExportDefinition System.ComponentModel.Composition.Primitives.ImportDefinition System.ComponentModel.Composition.ReflectionModel.ReflectionModelServices

Total Downloads
187.8M
187,842,838
Published
Mar 10, 2026
Latest stable version

Install

.NET CLI
dotnet add package System.ComponentModel.Composition --version 10.0.4
Package Manager Console
Install-Package System.ComponentModel.Composition -Version 10.0.4
PackageReference
<PackageReference Include="System.ComponentModel.Composition" Version="10.0.4" />

Frameworks

net8.0 net9.0 net10.0 .NETStandard2.0

Dependencies

No declared dependencies.

Adoption guide

A verified publisher signal is available. Assess fit from the package's supported frameworks, license and dependency graph rather than popularity alone.

Compatibility metadata lists 4 target frameworks; confirm the exact target used by your application.

How to read this guidance

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