ServiceCollectionDescriptorExtensions.TryAddSingleton 方法

定义

命名空间:

Microsoft.Extensions.DependencyInjection.Extensions

程序集:

Microsoft.Extensions.DependencyInjection.Abstractions.dll

包:

Microsoft.Extensions.DependencyInjection.Abstractions v11.0.0-preview.5.26302.115

重载

名称	说明
TryAddSingleton(IServiceCollection, Type, Type)	将指定的 service 作为具有 Singleton 实现的 implementationType 服务添加到 collection（如果尚未注册服务类型）。
TryAddSingleton(IServiceCollection, Type, Func<IServiceProvider,Object>)	使用 service 中指定的工厂将指定的 Singleton 作为 implementationFactory 服务添加到 collection（如果尚未注册服务类型）。
TryAddSingleton(IServiceCollection, Type)	将指定的 service 作为 Singleton 服务添加到 collection（如果尚未注册服务类型）。
TryAddSingleton<TService,TImplementation>(IServiceCollection)	将指定的 TService 添加为在 Singleton 中指定的 TImplementation 服务实现类型，如果尚未注册服务类型，则将其添加到 collection。
TryAddSingleton<TService>(IServiceCollection)	将指定的 TService 作为 Singleton 服务添加到 collection（如果尚未注册服务类型）。
TryAddSingleton<TService>(IServiceCollection, Func<IServiceProvider,TService>)	使用 TService 中指定的工厂将指定的 Singleton 作为 implementationFactory 服务添加到 services（如果尚未注册服务类型）。
TryAddSingleton<TService>(IServiceCollection, TService)	如果尚未注册服务类型，则将指定的 TService 添加为 Singleton 服务，并在 instance 中指定的实例添加到 collection。

TryAddSingleton(IServiceCollection, Type, Type)

Source:

ServiceCollectionDescriptorExtensions.cs

将指定的 service 作为具有 Singleton 实现的 implementationType 服务添加到 collection（如果尚未注册服务类型）。

public:
[System::Runtime::CompilerServices::Extension]
 static void TryAddSingleton(Microsoft::Extensions::DependencyInjection::IServiceCollection ^ collection, Type ^ service, Type ^ implementationType);

public static void TryAddSingleton(this Microsoft.Extensions.DependencyInjection.IServiceCollection collection, Type service, Type implementationType);

static member TryAddSingleton : Microsoft.Extensions.DependencyInjection.IServiceCollection * Type * Type -> unit

<Extension()>
Public Sub TryAddSingleton (collection As IServiceCollection, service As Type, implementationType As Type)

参数

collection

IServiceCollection

。IServiceCollection

service

Type

要注册的服务的类型。

implementationType

Type

服务的实现类型。

另请参阅

• AddSingleton(IServiceCollection, Type, Type)

TryAddSingleton(IServiceCollection, Type, Func<IServiceProvider,Object>)

Source:

ServiceCollectionDescriptorExtensions.cs

使用 service 中指定的工厂将指定的 Singleton 作为 implementationFactory 服务添加到 collection（如果尚未注册服务类型）。

public:
[System::Runtime::CompilerServices::Extension]
 static void TryAddSingleton(Microsoft::Extensions::DependencyInjection::IServiceCollection ^ collection, Type ^ service, Func<IServiceProvider ^, System::Object ^> ^ implementationFactory);

public static void TryAddSingleton(this Microsoft.Extensions.DependencyInjection.IServiceCollection collection, Type service, Func<IServiceProvider,object> implementationFactory);

static member TryAddSingleton : Microsoft.Extensions.DependencyInjection.IServiceCollection * Type * Func<IServiceProvider, obj> -> unit

<Extension()>
Public Sub TryAddSingleton (collection As IServiceCollection, service As Type, implementationFactory As Func(Of IServiceProvider, Object))

参数

collection

IServiceCollection

。IServiceCollection

service

Type

要注册的服务的类型。

implementationFactory

Func<IServiceProvider,Object>

创建服务的工厂。

另请参阅

• AddSingleton(IServiceCollection, Type, Func<IServiceProvider,Object>)

TryAddSingleton(IServiceCollection, Type)

Source:

ServiceCollectionDescriptorExtensions.cs

将指定的 service 作为 Singleton 服务添加到 collection（如果尚未注册服务类型）。

public:
[System::Runtime::CompilerServices::Extension]
 static void TryAddSingleton(Microsoft::Extensions::DependencyInjection::IServiceCollection ^ collection, Type ^ service);

public static void TryAddSingleton(this Microsoft.Extensions.DependencyInjection.IServiceCollection collection, Type service);

static member TryAddSingleton : Microsoft.Extensions.DependencyInjection.IServiceCollection * Type -> unit

<Extension()>
Public Sub TryAddSingleton (collection As IServiceCollection, service As Type)

参数

collection

IServiceCollection

。IServiceCollection

service

Type

要注册的服务的类型。

另请参阅

• AddSingleton(IServiceCollection, Type)

TryAddSingleton<TService,TImplementation>(IServiceCollection)

Source:

ServiceCollectionDescriptorExtensions.cs

将指定的 TService 添加为在 Singleton 中指定的 TImplementation 服务实现类型，如果尚未注册服务类型，则将其添加到 collection。

public:
generic <typename TService, typename TImplementation>
 where TService : class where TImplementation : class, TService[System::Runtime::CompilerServices::Extension]
 static void TryAddSingleton(Microsoft::Extensions::DependencyInjection::IServiceCollection ^ collection);

public static void TryAddSingleton<TService,TImplementation>(this Microsoft.Extensions.DependencyInjection.IServiceCollection collection) where TService : class where TImplementation : class, TService;

static member TryAddSingleton : Microsoft.Extensions.DependencyInjection.IServiceCollection -> unit (requires 'Service : null)

<Extension()>
Public Sub TryAddSingleton(Of TService As Class, TImplementation As Class) (collection As IServiceCollection)

类型参数

TService

要添加的服务的类型。

TImplementation

要使用的实现的类型。

参数

collection

IServiceCollection

。IServiceCollection

另请参阅

• AddSingleton<TService,TImplementation>(IServiceCollection)

TryAddSingleton<TService>(IServiceCollection)

Source:

ServiceCollectionDescriptorExtensions.cs

将指定的 TService 作为 Singleton 服务添加到 collection（如果尚未注册服务类型）。

public:
generic <typename TService>
 where TService : class[System::Runtime::CompilerServices::Extension]
 static void TryAddSingleton(Microsoft::Extensions::DependencyInjection::IServiceCollection ^ collection);

public static void TryAddSingleton<TService>(this Microsoft.Extensions.DependencyInjection.IServiceCollection collection) where TService : class;

static member TryAddSingleton : Microsoft.Extensions.DependencyInjection.IServiceCollection -> unit (requires 'Service : null)

<Extension()>
Public Sub TryAddSingleton(Of TService As Class) (collection As IServiceCollection)

类型参数

TService

要添加的服务的类型。

参数

collection

IServiceCollection

。IServiceCollection

另请参阅

• AddSingleton<TService>(IServiceCollection)

TryAddSingleton<TService>(IServiceCollection, Func<IServiceProvider,TService>)

Source:

ServiceCollectionDescriptorExtensions.cs

使用 TService 中指定的工厂将指定的 Singleton 作为 implementationFactory 服务添加到 services（如果尚未注册服务类型）。

public:
generic <typename TService>
 where TService : class[System::Runtime::CompilerServices::Extension]
 static void TryAddSingleton(Microsoft::Extensions::DependencyInjection::IServiceCollection ^ services, Func<IServiceProvider ^, TService> ^ implementationFactory);

public static void TryAddSingleton<TService>(this Microsoft.Extensions.DependencyInjection.IServiceCollection services, Func<IServiceProvider,TService> implementationFactory) where TService : class;

static member TryAddSingleton : Microsoft.Extensions.DependencyInjection.IServiceCollection * Func<IServiceProvider, 'Service (requires 'Service : null)> -> unit (requires 'Service : null)

<Extension()>
Public Sub TryAddSingleton(Of TService As Class) (services As IServiceCollection, implementationFactory As Func(Of IServiceProvider, TService))

类型参数

TService

要添加的服务的类型。

参数

services

IServiceCollection

。IServiceCollection

implementationFactory

Func<IServiceProvider,TService>

创建服务的工厂。

另请参阅

• AddSingleton<TService>(IServiceCollection, Func<IServiceProvider,TService>)

TryAddSingleton<TService>(IServiceCollection, TService)

Source:

ServiceCollectionDescriptorExtensions.cs

如果尚未注册服务类型，则将指定的 TService 添加为 Singleton 服务，并在 instance 中指定的实例添加到 collection。

public:
generic <typename TService>
 where TService : class[System::Runtime::CompilerServices::Extension]
 static void TryAddSingleton(Microsoft::Extensions::DependencyInjection::IServiceCollection ^ collection, TService instance);

public static void TryAddSingleton<TService>(this Microsoft.Extensions.DependencyInjection.IServiceCollection collection, TService instance) where TService : class;

static member TryAddSingleton : Microsoft.Extensions.DependencyInjection.IServiceCollection * 'Service -> unit (requires 'Service : null)

<Extension()>
Public Sub TryAddSingleton(Of TService As Class) (collection As IServiceCollection, instance As TService)

类型参数

TService

要添加的服务的类型。

参数

collection

IServiceCollection

。IServiceCollection

instance

TService

要添加的服务实例。

另请参阅

• AddSingleton<TService>(IServiceCollection, TService)