Articolo
11/18/2011

CompositionContainer.GetExportsCore Method

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Returns a collection of all exports that match the conditions in the specified ImportDefinition object.

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

Syntax

'Declaration
Protected Overrides Function GetExportsCore ( _
    definition As ImportDefinition, _
    atomicComposition As AtomicComposition _
) As IEnumerable(Of Export)

protected override IEnumerable<Export> GetExportsCore(
    ImportDefinition definition,
    AtomicComposition atomicComposition
)

Parameters

definition
Type: System.ComponentModel.Composition.Primitives.ImportDefinition
The object that defines the conditions of the Export objects to get.

atomicComposition
Type: System.ComponentModel.Composition.Hosting.AtomicComposition
The composition transaction to use, or nulla null reference (Nothing in Visual Basic) to disable transactional composition.

Return Value

Type: System.Collections.Generic.IEnumerable<Export>
A collection of all the Export objects in this CompositionContainer object that match the conditions specified by definition.

Remarks

Implementations should not treat cardinality-related mismatches as errors and should not throw exceptions for cardinality-related mismatches. For example, if the import requests exactly one export and the provider has either no matching exports or more than one, the GetExportsCore method should return an empty IEnumerable<T> collection of Export objects.

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.

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