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ServiceCollectionDescriptorExtensions.TryAddEnumerable Method
Definition
- Assembly:
- Microsoft.Extensions.DependencyInjection.Abstractions.dll
- Package:
- Microsoft.Extensions.DependencyInjection.Abstractions v11.0.0-preview.5.26302.115
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Overloads
| Name | Description |
|---|---|
| TryAddEnumerable(IServiceCollection, ServiceDescriptor) |
Adds a ServiceDescriptor if an existing descriptor with the same
ServiceType and an implementation that does not already exist
in |
| TryAddEnumerable(IServiceCollection, IEnumerable<ServiceDescriptor>) |
Adds the specified ServiceDescriptors if an existing descriptor with the same
ServiceType and an implementation that does not already exist
in |
TryAddEnumerable(IServiceCollection, ServiceDescriptor)
Adds a ServiceDescriptor if an existing descriptor with the same
ServiceType and an implementation that does not already exist
in services.
public:
[System::Runtime::CompilerServices::Extension]
static void TryAddEnumerable(Microsoft::Extensions::DependencyInjection::IServiceCollection ^ services, Microsoft::Extensions::DependencyInjection::ServiceDescriptor ^ descriptor);public static void TryAddEnumerable(this Microsoft.Extensions.DependencyInjection.IServiceCollection services, Microsoft.Extensions.DependencyInjection.ServiceDescriptor descriptor);static member TryAddEnumerable : Microsoft.Extensions.DependencyInjection.IServiceCollection * Microsoft.Extensions.DependencyInjection.ServiceDescriptor -> unit<Extension()>
Public Sub TryAddEnumerable (services As IServiceCollection, descriptor As ServiceDescriptor)Parameters
- services
- IServiceCollection
The IServiceCollection.
- descriptor
- ServiceDescriptor
The ServiceDescriptor.
Remarks
Use TryAddEnumerable(IServiceCollection, ServiceDescriptor) when registering a service implementation of a service type that supports multiple registrations of the same service type. Using Add(IServiceCollection, ServiceDescriptor) is not idempotent and can add duplicate ServiceDescriptor instances if called twice. Using TryAddEnumerable(IServiceCollection, ServiceDescriptor) will prevent registration of multiple implementation types.
Applies to
TryAddEnumerable(IServiceCollection, IEnumerable<ServiceDescriptor>)
Adds the specified ServiceDescriptors if an existing descriptor with the same
ServiceType and an implementation that does not already exist
in services.
public:
[System::Runtime::CompilerServices::Extension]
static void TryAddEnumerable(Microsoft::Extensions::DependencyInjection::IServiceCollection ^ services, System::Collections::Generic::IEnumerable<Microsoft::Extensions::DependencyInjection::ServiceDescriptor ^> ^ descriptors);public static void TryAddEnumerable(this Microsoft.Extensions.DependencyInjection.IServiceCollection services, System.Collections.Generic.IEnumerable<Microsoft.Extensions.DependencyInjection.ServiceDescriptor> descriptors);static member TryAddEnumerable : Microsoft.Extensions.DependencyInjection.IServiceCollection * seq<Microsoft.Extensions.DependencyInjection.ServiceDescriptor> -> unit<Extension()>
Public Sub TryAddEnumerable (services As IServiceCollection, descriptors As IEnumerable(Of ServiceDescriptor))Parameters
- services
- IServiceCollection
The IServiceCollection.
- descriptors
- IEnumerable<ServiceDescriptor>
The ServiceDescriptors.
Remarks
Use TryAddEnumerable(IServiceCollection, ServiceDescriptor) when registering a service implementation of a service type that supports multiple registrations of the same service type. Using Add(IServiceCollection, ServiceDescriptor) is not idempotent and can add duplicate ServiceDescriptor instances if called twice. Using TryAddEnumerable(IServiceCollection, ServiceDescriptor) will prevent registration of multiple implementation types.
Applies to
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