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ExportProvider.GetExport<T, TMetadataView> Method (String)

Returns the export with the specified contract name. If there is not exactly one matching export, an exception is thrown.

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

public Lazy<T, TMetadataView> GetExport<T, TMetadataView>(
	string contractName
)

Type Parameters

T

The type parameter of the Lazy<T, TMetadata> object to return.

TMetadataView

The type of the metadata view of the Lazy<T, TMetadata> object to return.

Parameters

contractName
Type: System.String

The contract name of the Lazy<T, TMetadata> object to return, or null or an empty string ("") to use the default contract name.

Return Value

Type: System.Lazy<T, TMetadataView>
The export with the specified contract name.

ExceptionCondition
ImportCardinalityMismatchException

There are zero Lazy<T, TMetadata> objects with the contract name derived from T in the CompositionContainer object.

-or-

There is more than one Lazy<T, TMetadata> object with the contract name derived from T in the CompositionContainer object.

ObjectDisposedException

The CompositionContainer object has been disposed of.

InvalidOperationException

TMetadataView is not a valid metadata view type.

The default contract name is the result of calling the GetContractName method on T.

The contract name is compared by using the Ordinal property to perform a case-sensitive, non-linguistic comparison.

.NET Framework

Supported in: 4.5, 4

.NET Framework Client Profile

Supported in: 4

Portable Class Library

Supported in: Portable Class Library

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

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