ExportProvider.GetExportedValue<T> Method

Returns the exported object with the contract name derived from the specified type parameter. 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)

Syntax

'Declaration
Public Function GetExportedValue(Of T) As T
public T GetExportedValue<T>()

Type Parameters

  • T
    The type of the exported object to return. The contract name is also derived from this type parameter.

Return Value

Type: T
The exported object with the contract name derived from the specified type parameter.

Exceptions

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.

Remarks

The 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.

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.