Article
11/18/2011

CompositionContainer Constructor (ComposablePartCatalog, Boolean, array<ExportProvider[])

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Updated: December 2010

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)

Syntax

'Declaration
Public Sub New ( _
    catalog As ComposablePartCatalog, _
    isThreadSafe As Boolean, _
    ParamArray providers As ExportProvider() _
)

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

Parameters

catalog
Type: System.ComponentModel.Composition.Primitives.ComposablePartCatalog
A catalog that provides Export objects to the CompositionContainer.

isThreadSafe
Type: System.Boolean
true if this CompositionContainer object must be thread-safe; otherwise, false.

providers
Type: array<System.ComponentModel.Composition.Hosting.ExportProvider[]
An array of ExportProvider objects that provide the CompositionContainer access to Export objects, or nulla null reference (Nothing in Visual Basic) to set the Providers property to an empty ReadOnlyCollection<T>.

Exceptions

Exception	Condition
ArgumentException	providers contains a null element.

Remarks

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

Version Information

Silverlight

Supported in: 5, 4

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

Change History

Date	History	Reason
December 2010	Added exception.	Content bug fix.

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