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CompositionContainer Constructor (ComposablePartCatalog, Boolean, ExportProvider[])

Initializes a new instance of the CompositionContainer class with the specified catalog, thread-safe mode, and export providers.

Namespace:  System.ComponentModel.Composition.Hosting
Assembly:  System.ComponentModel.Composition (in System.ComponentModel.Composition.dll)

public CompositionContainer(
	ComposablePartCatalog catalog,
	bool isThreadSafe,
	params ExportProvider[] providers


Type: System.ComponentModel.Composition.Primitives.ComposablePartCatalog
A catalog that provides Export objects to the CompositionContainer.
Type: System.Boolean
true if this CompositionContainer object must be thread-safe; otherwise, false.
Type: System.ComponentModel.Composition.Hosting.ExportProvider[]
An array of ExportProvider objects that provide the CompositionContainer access to Export objects, or null to set the Providers property to an empty ReadOnlyCollection<T>.


One or more elements of providers are null.

A CompositionContainer object that can be accessed from multiple threads must set the isThreadSafe parameter to true. Performance will be slightly slower when isThreadSafe is true, so we recommend that you set this parameter to false in single-threaded scenarios. The default is false.

.NET Framework

Supported in: 4

.NET Framework Client Profile

Supported in: 4

Portable Class Library

Supported in: Portable Class Library

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.