GetExportedValue(T) Method (String)
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ExportProvider.GetExportedValue<T> Method (String)

.NET Framework (current version)
 

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

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

public T GetExportedValue<T>(
	string contractName
)

Parameters

contractName
Type: System.String

The contract name of the exported object to return, or null or an empty string ("") to use the default contract name.

Return Value

Type: T

The exported object with the specified contract name.

Type Parameters

T

The type of the exported object to return.

Exception Condition
ImportCardinalityMismatchException

There are zero exported objects with the contract name derived from T in the CompositionContainer.

-or-

There is more than one exported object with the contract name derived from T in the CompositionContainer.

ObjectDisposedException

The CompositionContainer object has been disposed of.

CompositionContractMismatchException

The underlying exported object cannot be cast to T.

CompositionException

An error occurred during composition. Errors will contain a collection of errors that occurred.

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
Available since 4.0
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 4.0
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