ServiceCollectionDescriptorExtensions.TryAddSingleton Method

Definition

Namespace:

Microsoft.Extensions.DependencyInjection.Extensions

Assembly:

Microsoft.Extensions.DependencyInjection.Abstractions.dll

Package:

Microsoft.Extensions.DependencyInjection.Abstractions v9.0.0

Overloads

TryAddSingleton(IServiceCollection, Type, Type)	Adds the specified service as a Singleton service with the implementationType implementation to the collection if the service type hasn't already been registered.
TryAddSingleton(IServiceCollection, Type, Func<IServiceProvider,Object>)	Adds the specified service as a Singleton service using the factory specified in implementationFactory to the collection if the service type hasn't already been registered.
TryAddSingleton(IServiceCollection, Type)	Adds the specified service as a Singleton service to the collection if the service type hasn't already been registered.
TryAddSingleton<TService,TImplementation>(IServiceCollection)	Adds the specified TService as a Singleton service implementation type specified in TImplementation to the collection if the service type hasn't already been registered.
TryAddSingleton<TService>(IServiceCollection)	Adds the specified TService as a Singleton service to the collection if the service type hasn't already been registered.
TryAddSingleton<TService>(IServiceCollection, Func<IServiceProvider,TService>)	Adds the specified TService as a Singleton service using the factory specified in implementationFactory to the services if the service type hasn't already been registered.
TryAddSingleton<TService>(IServiceCollection, TService)	Adds the specified TService as a Singleton service with an instance specified in instance to the collection if the service type hasn't already been registered.

TryAddSingleton(IServiceCollection, Type, Type)

Source:

ServiceCollectionDescriptorExtensions.cs

Adds the specified service as a Singleton service with the implementationType implementation to the collection if the service type hasn't already been registered.

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)

Parameters

collection

IServiceCollection

The IServiceCollection.

service

Type

The type of the service to register.

implementationType

Type

The implementation type of the service.

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

Source:

ServiceCollectionDescriptorExtensions.cs

Adds the specified service as a Singleton service using the factory specified in implementationFactory to the collection if the service type hasn't already been registered.

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))

Parameters

collection

IServiceCollection

The IServiceCollection.

service

Type

The type of the service to register.

implementationFactory

Func<IServiceProvider,Object>

The factory that creates the service.

TryAddSingleton(IServiceCollection, Type)

Source:

ServiceCollectionDescriptorExtensions.cs

Adds the specified service as a Singleton service to the collection if the service type hasn't already been registered.

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)

Parameters

collection

IServiceCollection

The IServiceCollection.

service

Type

The type of the service to register.

TryAddSingleton<TService,TImplementation>(IServiceCollection)

Source:

ServiceCollectionDescriptorExtensions.cs

Adds the specified TService as a Singleton service implementation type specified in TImplementation to the collection if the service type hasn't already been registered.

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)

Type Parameters

TService

The type of the service to add.

TImplementation

The type of the implementation to use.

Parameters

collection

IServiceCollection

The IServiceCollection.

TryAddSingleton<TService>(IServiceCollection)

Source:

ServiceCollectionDescriptorExtensions.cs

Adds the specified TService as a Singleton service to the collection if the service type hasn't already been registered.

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)

Type Parameters

TService

The type of the service to add.

Parameters

collection

IServiceCollection

The IServiceCollection.

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

Source:

ServiceCollectionDescriptorExtensions.cs

Adds the specified TService as a Singleton service using the factory specified in implementationFactory to the services if the service type hasn't already been registered.

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))

Type Parameters

TService

The type of the service to add.

Parameters

services

IServiceCollection

The IServiceCollection.

implementationFactory

Func<IServiceProvider,TService>

The factory that creates the service.

TryAddSingleton<TService>(IServiceCollection, TService)

Source:

ServiceCollectionDescriptorExtensions.cs

Adds the specified TService as a Singleton service with an instance specified in instance to the collection if the service type hasn't already been registered.

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)

Type Parameters

TService

The type of the service to add.

Parameters

collection

IServiceCollection

The IServiceCollection.

instance

TService

The instance of the service to add.