LifetimeContext.TryGetExport(CompositionContract, Object) Method

Definition

Namespace:

System.Composition.Hosting.Core

Assembly:

System.Composition.Hosting.dll

Package:

System.Composition.Hosting v9.0.0-rc.2.24473.5

Source:

LifetimeContext.cs

Retrieves a contract instance from the composition context.

public:
 override bool TryGetExport(System::Composition::Hosting::Core::CompositionContract ^ contract, [Runtime::InteropServices::Out] System::Object ^ % export);

public override bool TryGetExport (System.Composition.Hosting.Core.CompositionContract contract, out object export);

override this.TryGetExport : System.Composition.Hosting.Core.CompositionContract * obj -> bool

Public Overrides Function TryGetExport (contract As CompositionContract, ByRef export As Object) As Boolean

Parameters

contract

CompositionContract

The contract.

export

Object

After this method returns, contains the contract instance if available; otherwise, null.

Returns

Boolean

true if the instance was retrieved; otherwise, false.

Exceptions

CompositionFailedException

No export was found for contract.