ExportProvider.GetExportedValue Method
Definition
Important
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Gets an exported object.
Overloads
| GetExportedValue<T>() |
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. |
| GetExportedValue<T>(String) |
Returns the exported object with the specified contract name. If there is not exactly one matching exported object, an exception is thrown. |
GetExportedValue<T>()
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.
public:
generic <typename T>
T GetExportedValue();public T? GetExportedValue<T> ();public T GetExportedValue<T> ();member this.GetExportedValue : unit -> 'TPublic Function GetExportedValue(Of T) () As TType Parameters
- T
The type of the exported object to return. The contract name is also derived from this type parameter.
Returns
The exported object with the contract name derived from the specified type parameter.
Exceptions
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.
The CompositionContainer object has been disposed of.
The underlying exported object cannot be cast to T.
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.
Applies to
GetExportedValue<T>(String)
Returns the exported object with the specified contract name. If there is not exactly one matching exported object, an exception is thrown.
public:
generic <typename T>
T GetExportedValue(System::String ^ contractName);public T? GetExportedValue<T> (string? contractName);public T GetExportedValue<T> (string contractName);member this.GetExportedValue : string -> 'TPublic Function GetExportedValue(Of T) (contractName As String) As TType Parameters
- T
The type of the exported object to return.
Parameters
- contractName
- String
The contract name of the exported object to return, or null or an empty string ("") to use the default contract name.
Returns
The exported object with the specified contract name.
Exceptions
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.
The CompositionContainer object has been disposed of.
The underlying exported object cannot be cast to T.
An error occurred during composition. Errors will contain a collection of errors that occurred.
Remarks
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.
