ServiceCollectionServiceExtensions.AddSingleton 方法
定义
重要
一些信息与预发行产品相关，相应产品在发行之前可能会进行重大修改。 对于此处提供的信息，Microsoft 不作任何明示或暗示的担保。
重载
AddSingleton(IServiceCollection, Type, Object)
将指定类型的serviceType单一实例服务添加到指定的IServiceCollection实例implementationInstance。
public:
[System::Runtime::CompilerServices::Extension]
static Microsoft::Extensions::DependencyInjection::IServiceCollection ^ AddSingleton(Microsoft::Extensions::DependencyInjection::IServiceCollection ^ services, Type ^ serviceType, System::Object ^ implementationInstance);public static Microsoft.Extensions.DependencyInjection.IServiceCollection AddSingleton(this Microsoft.Extensions.DependencyInjection.IServiceCollection services, Type serviceType, object implementationInstance);static member AddSingleton : Microsoft.Extensions.DependencyInjection.IServiceCollection * Type * obj -> Microsoft.Extensions.DependencyInjection.IServiceCollection<Extension()>
Public Function AddSingleton (services As IServiceCollection, serviceType As Type, implementationInstance As Object) As IServiceCollection参数
- services
- IServiceCollection
要 IServiceCollection 向其添加服务。
- serviceType
- Type
要注册的服务的类型。
- implementationInstance
- Object
服务的实例。
返回
操作完成后对此实例的引用。
注解
此方法始终向 添加新注册 IServiceCollection，即使已注册同一类型的服务也是如此。 当存在多个注册时， GetService(Type) 返回最后一个注册的服务。 用于 GetServices<T>(IServiceProvider) 检索所有已注册的服务。
另请参阅
适用于
AddSingleton(IServiceCollection, Type, Type)
将指定类型的 serviceType 单一实例服务与指定类型的 implementationType 实现一起添加到指定的 IServiceCollection类型。
public:
[System::Runtime::CompilerServices::Extension]
static Microsoft::Extensions::DependencyInjection::IServiceCollection ^ AddSingleton(Microsoft::Extensions::DependencyInjection::IServiceCollection ^ services, Type ^ serviceType, Type ^ implementationType);public static Microsoft.Extensions.DependencyInjection.IServiceCollection AddSingleton(this Microsoft.Extensions.DependencyInjection.IServiceCollection services, Type serviceType, Type implementationType);static member AddSingleton : Microsoft.Extensions.DependencyInjection.IServiceCollection * Type * Type -> Microsoft.Extensions.DependencyInjection.IServiceCollection<Extension()>
Public Function AddSingleton (services As IServiceCollection, serviceType As Type, implementationType As Type) As IServiceCollection参数
- services
- IServiceCollection
要 IServiceCollection 向其添加服务。
- serviceType
- Type
要注册的服务的类型。
- implementationType
- Type
服务的实现类型。
返回
操作完成后对此实例的引用。
注解
此方法始终向 添加新注册 IServiceCollection，即使已注册同一类型的服务也是如此。 当存在多个注册时， GetService(Type) 返回最后一个注册的服务。 用于 GetServices<T>(IServiceProvider) 检索所有已注册的服务。
另请参阅
适用于
AddSingleton(IServiceCollection, Type)
将指定 serviceType 类型的单一实例服务添加到指定的 IServiceCollection类型。
public:
[System::Runtime::CompilerServices::Extension]
static Microsoft::Extensions::DependencyInjection::IServiceCollection ^ AddSingleton(Microsoft::Extensions::DependencyInjection::IServiceCollection ^ services, Type ^ serviceType);public static Microsoft.Extensions.DependencyInjection.IServiceCollection AddSingleton(this Microsoft.Extensions.DependencyInjection.IServiceCollection services, Type serviceType);static member AddSingleton : Microsoft.Extensions.DependencyInjection.IServiceCollection * Type -> Microsoft.Extensions.DependencyInjection.IServiceCollection<Extension()>
Public Function AddSingleton (services As IServiceCollection, serviceType As Type) As IServiceCollection参数
- services
- IServiceCollection
要 IServiceCollection 向其添加服务。
- serviceType
- Type
要注册的服务的类型以及要使用的实现。
返回
操作完成后对此实例的引用。
注解
此方法始终向 添加新注册 IServiceCollection，即使已注册同一类型的服务也是如此。 当存在多个注册时， GetService(Type) 返回最后一个注册的服务。 用于 GetServices<T>(IServiceProvider) 检索所有已注册的服务。
另请参阅
适用于
AddSingleton(IServiceCollection, Type, Func<IServiceProvider,Object>)
使用指定的工厂implementationFactory将指定serviceType类型的单一实例服务添加到指定的IServiceCollection工厂。
public:
[System::Runtime::CompilerServices::Extension]
static Microsoft::Extensions::DependencyInjection::IServiceCollection ^ AddSingleton(Microsoft::Extensions::DependencyInjection::IServiceCollection ^ services, Type ^ serviceType, Func<IServiceProvider ^, System::Object ^> ^ implementationFactory);public static Microsoft.Extensions.DependencyInjection.IServiceCollection AddSingleton(this Microsoft.Extensions.DependencyInjection.IServiceCollection services, Type serviceType, Func<IServiceProvider,object> implementationFactory);static member AddSingleton : Microsoft.Extensions.DependencyInjection.IServiceCollection * Type * Func<IServiceProvider, obj> -> Microsoft.Extensions.DependencyInjection.IServiceCollection<Extension()>
Public Function AddSingleton (services As IServiceCollection, serviceType As Type, implementationFactory As Func(Of IServiceProvider, Object)) As IServiceCollection参数
- services
- IServiceCollection
要 IServiceCollection 向其添加服务。
- serviceType
- Type
要注册的服务的类型。
- implementationFactory
- Func<IServiceProvider,Object>
创建服务的工厂。
返回
操作完成后对此实例的引用。
注解
此方法始终向 添加新注册 IServiceCollection，即使已注册同一类型的服务也是如此。 当存在多个注册时， GetService(Type) 返回最后一个注册的服务。 用于 GetServices<T>(IServiceProvider) 检索所有已注册的服务。
另请参阅
适用于
AddSingleton<TService,TImplementation>(IServiceCollection)
将指定类型的TService单一实例服务添加到指定的IServiceCollection实现类型TImplementation。
public:
generic <typename TService, typename TImplementation>
where TService : class where TImplementation : class, TService[System::Runtime::CompilerServices::Extension]
static Microsoft::Extensions::DependencyInjection::IServiceCollection ^ AddSingleton(Microsoft::Extensions::DependencyInjection::IServiceCollection ^ services);public static Microsoft.Extensions.DependencyInjection.IServiceCollection AddSingleton<TService,TImplementation>(this Microsoft.Extensions.DependencyInjection.IServiceCollection services) where TService : class where TImplementation : class, TService;static member AddSingleton : Microsoft.Extensions.DependencyInjection.IServiceCollection -> Microsoft.Extensions.DependencyInjection.IServiceCollection (requires 'Service : null)<Extension()>
Public Function AddSingleton(Of TService As Class, TImplementation As Class) (services As IServiceCollection) 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
- services
- IServiceCollection
要 IServiceCollection 向其添加服务。
返回
操作完成后对此实例的引用。
注解
此方法始终向 添加新注册 IServiceCollection，即使已注册同一类型的服务也是如此。 当存在多个注册时， GetService(Type) 返回最后一个注册的服务。 用于 GetServices<T>(IServiceProvider) 检索所有已注册的服务。
另请参阅
适用于
AddSingleton<TService,TImplementation>(IServiceCollection, Func<IServiceProvider,TImplementation>)
使用指定的工厂implementationFactory将指定类型的TService单一实例服务添加到指定的IServiceCollection工厂中指定的TImplementation实现类型。
public:
generic <typename TService, typename TImplementation>
where TService : class where TImplementation : class, TService[System::Runtime::CompilerServices::Extension]
static Microsoft::Extensions::DependencyInjection::IServiceCollection ^ AddSingleton(Microsoft::Extensions::DependencyInjection::IServiceCollection ^ services, Func<IServiceProvider ^, TImplementation> ^ implementationFactory);public static Microsoft.Extensions.DependencyInjection.IServiceCollection AddSingleton<TService,TImplementation>(this Microsoft.Extensions.DependencyInjection.IServiceCollection services, Func<IServiceProvider,TImplementation> implementationFactory) where TService : class where TImplementation : class, TService;static member AddSingleton : Microsoft.Extensions.DependencyInjection.IServiceCollection * Func<IServiceProvider, #'Service> -> Microsoft.Extensions.DependencyInjection.IServiceCollection (requires 'Service : null)<Extension()>
Public Function AddSingleton(Of TService As Class, TImplementation As Class) (services As IServiceCollection, implementationFactory As Func(Of IServiceProvider, TImplementation)) 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
- services
- IServiceCollection
要 IServiceCollection 向其添加服务。
- implementationFactory
- Func<IServiceProvider,TImplementation>
创建服务的工厂。
返回
操作完成后对此实例的引用。
注解
此方法始终向 添加新注册 IServiceCollection，即使已注册同一类型的服务也是如此。 当存在多个注册时， GetService(Type) 返回最后一个注册的服务。 用于 GetServices<T>(IServiceProvider) 检索所有已注册的服务。
另请参阅
适用于
AddSingleton<TService>(IServiceCollection)
将指定 TService 类型的单一实例服务添加到指定的 IServiceCollection类型。
public:
generic <typename TService>
where TService : class[System::Runtime::CompilerServices::Extension]
static Microsoft::Extensions::DependencyInjection::IServiceCollection ^ AddSingleton(Microsoft::Extensions::DependencyInjection::IServiceCollection ^ services);public static Microsoft.Extensions.DependencyInjection.IServiceCollection AddSingleton<TService>(this Microsoft.Extensions.DependencyInjection.IServiceCollection services) where TService : class;static member AddSingleton : Microsoft.Extensions.DependencyInjection.IServiceCollection -> Microsoft.Extensions.DependencyInjection.IServiceCollection (requires 'Service : null)<Extension()>
Public Function AddSingleton(Of TService As Class) (services As IServiceCollection) As IServiceCollection类型参数
- TService
要添加的服务的类型。
参数
- services
- IServiceCollection
要 IServiceCollection 向其添加服务。
返回
操作完成后对此实例的引用。
注解
此方法始终向 添加新注册 IServiceCollection，即使已注册同一类型的服务也是如此。 当存在多个注册时， GetService(Type) 返回最后一个注册的服务。 用于 GetServices<T>(IServiceProvider) 检索所有已注册的服务。
另请参阅
适用于
AddSingleton<TService>(IServiceCollection, Func<IServiceProvider,TService>)
使用指定的工厂implementationFactory将指定TService类型的单一实例服务添加到指定的IServiceCollection工厂。
public:
generic <typename TService>
where TService : class[System::Runtime::CompilerServices::Extension]
static Microsoft::Extensions::DependencyInjection::IServiceCollection ^ AddSingleton(Microsoft::Extensions::DependencyInjection::IServiceCollection ^ services, Func<IServiceProvider ^, TService> ^ implementationFactory);public static Microsoft.Extensions.DependencyInjection.IServiceCollection AddSingleton<TService>(this Microsoft.Extensions.DependencyInjection.IServiceCollection services, Func<IServiceProvider,TService> implementationFactory) where TService : class;static member AddSingleton : Microsoft.Extensions.DependencyInjection.IServiceCollection * Func<IServiceProvider, 'Service (requires 'Service : null)> -> Microsoft.Extensions.DependencyInjection.IServiceCollection (requires 'Service : null)<Extension()>
Public Function AddSingleton(Of TService As Class) (services As IServiceCollection, implementationFactory As Func(Of IServiceProvider, TService)) As IServiceCollection类型参数
- TService
要添加的服务的类型。
参数
- services
- IServiceCollection
要 IServiceCollection 向其添加服务。
- implementationFactory
- Func<IServiceProvider,TService>
创建服务的工厂。
返回
操作完成后对此实例的引用。
注解
此方法始终向 添加新注册 IServiceCollection，即使已注册同一类型的服务也是如此。 当存在多个注册时， GetService(Type) 返回最后一个注册的服务。 用于 GetServices<T>(IServiceProvider) 检索所有已注册的服务。
另请参阅
适用于
AddSingleton<TService>(IServiceCollection, TService)
将指定类型的TService单一实例服务添加到指定的IServiceCollection实例implementationInstance。
public:
generic <typename TService>
where TService : class[System::Runtime::CompilerServices::Extension]
static Microsoft::Extensions::DependencyInjection::IServiceCollection ^ AddSingleton(Microsoft::Extensions::DependencyInjection::IServiceCollection ^ services, TService implementationInstance);public static Microsoft.Extensions.DependencyInjection.IServiceCollection AddSingleton<TService>(this Microsoft.Extensions.DependencyInjection.IServiceCollection services, TService implementationInstance) where TService : class;static member AddSingleton : Microsoft.Extensions.DependencyInjection.IServiceCollection * 'Service -> Microsoft.Extensions.DependencyInjection.IServiceCollection (requires 'Service : null)<Extension()>
Public Function AddSingleton(Of TService As Class) (services As IServiceCollection, implementationInstance As TService) As IServiceCollection类型参数
- TService
参数
- services
- IServiceCollection
要 IServiceCollection 向其添加服务。
- implementationInstance
- TService
服务的实例。
返回
操作完成后对此实例的引用。
注解
此方法始终向 添加新注册 IServiceCollection，即使已注册同一类型的服务也是如此。 当存在多个注册时， GetService(Type) 返回最后一个注册的服务。 用于 GetServices<T>(IServiceProvider) 检索所有已注册的服务。
