CompositionContext.TryGetExport Method
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| TryGetExport(CompositionContract, Object) |
Returns the export that matches the specified contract, or returns |
| TryGetExport(Type, Object) |
Returns the export that matches the specified type, or returns |
| TryGetExport(Type, String, Object) |
Returns the export that matches the specified contract name and type, or returns |
| TryGetExport<TExport>(TExport) |
Returns the export that matches the specified generic type parameter, or returns |
| TryGetExport<TExport>(String, TExport) |
Returns the export that matches the specified generic type parameter and contract name, or returns |
- Source:
- CompositionContext.cs
- Source:
- CompositionContext.cs
- Source:
- CompositionContext.cs
Returns the export that matches the specified contract, or returns null if no match is found.
public:
abstract bool TryGetExport(System::Composition::Hosting::Core::CompositionContract ^ contract, [Runtime::InteropServices::Out] System::Object ^ % export);public abstract bool TryGetExport(System.Composition.Hosting.Core.CompositionContract contract, out object export);abstract member TryGetExport : System.Composition.Hosting.Core.CompositionContract * obj -> boolPublic MustOverride Function TryGetExport (contract As CompositionContract, ByRef export As Object) As BooleanParameters
- contract
- CompositionContract
The contract to match.
- export
- Object
When this method returns, contains the matched export or null.
Returns
true if an export was found; otherwise, false.
Exceptions
No export was found for contract.
Applies to
.NET 10 (package-provided) 和其他版本
| 产品 | 版本 |
|---|---|
| .NET | Core 1.1, 8 (package-provided), 9 (package-provided), 10 (package-provided) |
| .NET Standard | 2.0 (package-provided) |
- Source:
- CompositionContext.cs
- Source:
- CompositionContext.cs
- Source:
- CompositionContext.cs
Returns the export that matches the specified type, or returns null if no match is found.
public:
bool TryGetExport(Type ^ exportType, [Runtime::InteropServices::Out] System::Object ^ % export);public bool TryGetExport(Type exportType, out object export);member this.TryGetExport : Type * obj -> boolPublic Function TryGetExport (exportType As Type, ByRef export As Object) As BooleanParameters
- exportType
- Type
The type to match.
- export
- Object
When this method returns, contains the matched export or null.
Returns
true if an export was found; otherwise, false.
Applies to
.NET 10 (package-provided) 和其他版本
| 产品 | 版本 |
|---|---|
| .NET | Core 1.1, 8 (package-provided), 9 (package-provided), 10 (package-provided) |
| .NET Standard | 2.0 (package-provided) |
- Source:
- CompositionContext.cs
- Source:
- CompositionContext.cs
- Source:
- CompositionContext.cs
Returns the export that matches the specified contract name and type, or returns null if no match is found.
public:
bool TryGetExport(Type ^ exportType, System::String ^ contractName, [Runtime::InteropServices::Out] System::Object ^ % export);public bool TryGetExport(Type exportType, string contractName, out object export);member this.TryGetExport : Type * string * obj -> boolPublic Function TryGetExport (exportType As Type, contractName As String, ByRef export As Object) As BooleanParameters
- exportType
- Type
The type to match.
- contractName
- String
The name to match.
- export
- Object
When this method returns, contains the matched export or null.
Returns
true if an export was found; otherwise, false.
Exceptions
No export was found for contractName.
Applies to
.NET 10 (package-provided) 和其他版本
| 产品 | 版本 |
|---|---|
| .NET | Core 1.1, 8 (package-provided), 9 (package-provided), 10 (package-provided) |
| .NET Standard | 2.0 (package-provided) |
- Source:
- CompositionContext.cs
- Source:
- CompositionContext.cs
- Source:
- CompositionContext.cs
Returns the export that matches the specified generic type parameter, or returns null if no match is found.
public:
generic <typename TExport>
bool TryGetExport([Runtime::InteropServices::Out] TExport % export);public bool TryGetExport<TExport>(out TExport export);member this.TryGetExport : 'Export -> boolPublic Function TryGetExport(Of TExport) (ByRef export As TExport) As BooleanType Parameters
- TExport
The type to match.
Parameters
- export
- TExport
When this method returns, contains the matched export or null.
Returns
true if an export was found; otherwise, false.
Applies to
.NET 10 (package-provided) 和其他版本
| 产品 | 版本 |
|---|---|
| .NET | Core 1.1, 8 (package-provided), 9 (package-provided), 10 (package-provided) |
| .NET Standard | 2.0 (package-provided) |
- Source:
- CompositionContext.cs
- Source:
- CompositionContext.cs
- Source:
- CompositionContext.cs
Returns the export that matches the specified generic type parameter and contract name, or returns null if no match is found.
public:
generic <typename TExport>
bool TryGetExport(System::String ^ contractName, [Runtime::InteropServices::Out] TExport % export);public bool TryGetExport<TExport>(string contractName, out TExport export);member this.TryGetExport : string * 'Export -> boolPublic Function TryGetExport(Of TExport) (contractName As String, ByRef export As TExport) As BooleanType Parameters
- TExport
The type to match.
Parameters
- contractName
- String
The name to match.
- export
- TExport
When this method returns, contains the matched export or null.
Returns
true if an export was found; otherwise, false.
Exceptions
No export was found for contractName.
Applies to
.NET 10 (package-provided) 和其他版本
| 产品 | 版本 |
|---|---|
| .NET | Core 1.1, 8 (package-provided), 9 (package-provided), 10 (package-provided) |
| .NET Standard | 2.0 (package-provided) |
