語言

DependencyAccessor.TryResolveOptionalDependency 方法

定義

解決對合約某一實作的可選依賴性。

public:
 bool TryResolveOptionalDependency(System::Object ^ site, System::Composition::Hosting::Core::CompositionContract ^ contract, bool isPrerequisite, [Runtime::InteropServices::Out] System::Composition::Hosting::Core::CompositionDependency ^ % dependency);
public bool TryResolveOptionalDependency(object site, System.Composition.Hosting.Core.CompositionContract contract, bool isPrerequisite, out System.Composition.Hosting.Core.CompositionDependency dependency);
member this.TryResolveOptionalDependency : obj * System.Composition.Hosting.Core.CompositionContract * bool * CompositionDependency -> bool
Public Function TryResolveOptionalDependency (site As Object, contract As CompositionContract, isPrerequisite As Boolean, ByRef dependency As CompositionDependency) As Boolean

參數

site
Object

一個描述相依網站的標籤。

contract
CompositionContract

這是網站要求的合約。

isPrerequisite
Boolean

true表示必須滿足依賴性,才能提供出口;否則,。 false

dependency
CompositionDependency

此方法返回後,包含已解決的相依性或 null。

傳回

true如果依賴關係被解決;否則,。 false

適用於