ExportProvider.GetExport<T, TMetadataView> Method (String)
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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)
Syntax
'Declaration
Public Function GetExport(Of T, TMetadataView) ( _
contractName As String _
) As Lazy(Of T, TMetadataView)
public Lazy<T, TMetadataView> GetExport<T, TMetadataView>(
string contractName
)
Type Parameters
- T
The type of the Export<T, TMetadataView> object to return.
- TMetadataView
The type of the metadata view of the Export<T, TMetadataView> object to return.
Parameters
- contractName
Type: System.String
The contract name of the Export<T, TMetadataView> object to return, or nulla null reference (Nothing in Visual Basic) or an empty string ("") to use the default contract name.
Return Value
Type: System.Lazy<T, TMetadataView>
The export with the specified contract name.
Exceptions
| Exception | Condition |
|---|---|
| ImportCardinalityMismatchException | There are zero Export<T, TMetadataView> objects with the contract name derived from T in the CompositionContainer object. -or- There is more than one Export<T, TMetadataView> 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. |
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.