EntityFrameworkServicesBuilder.TryAdd Method
Definition
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
| TryAdd(Type, Object) |
Adds an implementation of an Entity Framework service only if one has not already been registered. This method can only be used for singleton services. |
| TryAdd(Type, Type) |
Adds an implementation of an Entity Framework service only if one has not already been registered. The scope of the service is automatically defined by Entity Framework. |
| TryAdd(Type, Type, Func<IServiceProvider,Object>) |
Adds a factory for an Entity Framework service only if one has not already been registered. The scope of the service is automatically defined by Entity Framework. |
| TryAdd<TService,TImplementation>() |
Adds an implementation of an Entity Framework service only if one has not already been registered. The scope of the service is automatically defined by Entity Framework. |
| TryAdd<TService,TImplementation>(Func<IServiceProvider,TImplementation>) |
Adds a factory for an Entity Framework service only if one has not already been registered. The scope of the service is automatically defined by Entity Framework. |
| TryAdd<TService>(Func<IServiceProvider,TService>) |
Adds a factory for an Entity Framework service only if one has not already been registered. The scope of the service is automatically defined by Entity Framework. |
| TryAdd<TService>(TService) |
Adds an implementation of an Entity Framework service only if one has not already been registered. This method can only be used for singleton services. |
TryAdd(Type, Object)
Adds an implementation of an Entity Framework service only if one has not already been registered. This method can only be used for singleton services.
public virtual Microsoft.EntityFrameworkCore.Infrastructure.EntityFrameworkServicesBuilder TryAdd (Type serviceType, object implementation);abstract member TryAdd : Type * obj -> Microsoft.EntityFrameworkCore.Infrastructure.EntityFrameworkServicesBuilder
override this.TryAdd : Type * obj -> Microsoft.EntityFrameworkCore.Infrastructure.EntityFrameworkServicesBuilderPublic Overridable Function TryAdd (serviceType As Type, implementation As Object) As EntityFrameworkServicesBuilderParameters
- serviceType
- Type
The contract for the service.
- implementation
- Object
The implementation of the service.
Returns
This builder, such that further calls can be chained.
Remarks
See Implementation of database providers and extensions for more information and examples.
Applies to
TryAdd(Type, Type)
Adds an implementation of an Entity Framework service only if one has not already been registered. The scope of the service is automatically defined by Entity Framework.
public virtual Microsoft.EntityFrameworkCore.Infrastructure.EntityFrameworkServicesBuilder TryAdd (Type serviceType, Type implementationType);abstract member TryAdd : Type * Type -> Microsoft.EntityFrameworkCore.Infrastructure.EntityFrameworkServicesBuilder
override this.TryAdd : Type * Type -> Microsoft.EntityFrameworkCore.Infrastructure.EntityFrameworkServicesBuilderPublic Overridable Function TryAdd (serviceType As Type, implementationType As Type) As EntityFrameworkServicesBuilderParameters
- serviceType
- Type
The contract for the service.
- implementationType
- Type
The concrete type that implements the service.
Returns
This builder, such that further calls can be chained.
Remarks
See Implementation of database providers and extensions for more information and examples.
Applies to
TryAdd(Type, Type, Func<IServiceProvider,Object>)
Adds a factory for an Entity Framework service only if one has not already been registered. The scope of the service is automatically defined by Entity Framework.
public virtual Microsoft.EntityFrameworkCore.Infrastructure.EntityFrameworkServicesBuilder TryAdd (Type serviceType, Type implementationType, Func<IServiceProvider,object> factory);abstract member TryAdd : Type * Type * Func<IServiceProvider, obj> -> Microsoft.EntityFrameworkCore.Infrastructure.EntityFrameworkServicesBuilder
override this.TryAdd : Type * Type * Func<IServiceProvider, obj> -> Microsoft.EntityFrameworkCore.Infrastructure.EntityFrameworkServicesBuilderPublic Overridable Function TryAdd (serviceType As Type, implementationType As Type, factory As Func(Of IServiceProvider, Object)) As EntityFrameworkServicesBuilderParameters
- serviceType
- Type
The contract for the service.
- implementationType
- Type
The concrete type that implements the service.
- factory
- Func<IServiceProvider,Object>
The factory that will create the service instance.
Returns
This builder, such that further calls can be chained.
Remarks
See Implementation of database providers and extensions for more information and examples.
Applies to
TryAdd<TService,TImplementation>()
Adds an implementation of an Entity Framework service only if one has not already been registered. The scope of the service is automatically defined by Entity Framework.
public virtual Microsoft.EntityFrameworkCore.Infrastructure.EntityFrameworkServicesBuilder TryAdd<TService,TImplementation> () where TService : class where TImplementation : class, TService;abstract member TryAdd : unit -> Microsoft.EntityFrameworkCore.Infrastructure.EntityFrameworkServicesBuilder (requires 'Service : null)
override this.TryAdd : unit -> Microsoft.EntityFrameworkCore.Infrastructure.EntityFrameworkServicesBuilder (requires 'Service : null)Public Overridable Function TryAdd(Of TService As Class, TImplementation As Class) () As EntityFrameworkServicesBuilderType Parameters
- TService
The contract for the service.
- TImplementation
The concrete type that implements the service.
Returns
This builder, such that further calls can be chained.
Remarks
See Implementation of database providers and extensions for more information and examples.
Applies to
TryAdd<TService,TImplementation>(Func<IServiceProvider,TImplementation>)
Adds a factory for an Entity Framework service only if one has not already been registered. The scope of the service is automatically defined by Entity Framework.
public virtual Microsoft.EntityFrameworkCore.Infrastructure.EntityFrameworkServicesBuilder TryAdd<TService,TImplementation> (Func<IServiceProvider,TImplementation> factory) where TService : class where TImplementation : class, TService;abstract member TryAdd : Func<IServiceProvider, #'Service> -> Microsoft.EntityFrameworkCore.Infrastructure.EntityFrameworkServicesBuilder (requires 'Service : null)
override this.TryAdd : Func<IServiceProvider, #'Service> -> Microsoft.EntityFrameworkCore.Infrastructure.EntityFrameworkServicesBuilder (requires 'Service : null)Public Overridable Function TryAdd(Of TService As Class, TImplementation As Class) (factory As Func(Of IServiceProvider, TImplementation)) As EntityFrameworkServicesBuilderType Parameters
- TService
The contract for the service.
- TImplementation
The concrete type that implements the service.
Parameters
- factory
- Func<IServiceProvider,TImplementation>
The factory that will create the service instance.
Returns
This builder, such that further calls can be chained.
Remarks
See Implementation of database providers and extensions for more information and examples.
Applies to
TryAdd<TService>(Func<IServiceProvider,TService>)
Adds a factory for an Entity Framework service only if one has not already been registered. The scope of the service is automatically defined by Entity Framework.
public virtual Microsoft.EntityFrameworkCore.Infrastructure.EntityFrameworkServicesBuilder TryAdd<TService> (Func<IServiceProvider,TService> factory) where TService : class;abstract member TryAdd : Func<IServiceProvider, 'Service (requires 'Service : null)> -> Microsoft.EntityFrameworkCore.Infrastructure.EntityFrameworkServicesBuilder (requires 'Service : null)
override this.TryAdd : Func<IServiceProvider, 'Service (requires 'Service : null)> -> Microsoft.EntityFrameworkCore.Infrastructure.EntityFrameworkServicesBuilder (requires 'Service : null)Public Overridable Function TryAdd(Of TService As Class) (factory As Func(Of IServiceProvider, TService)) As EntityFrameworkServicesBuilderType Parameters
- TService
The contract for the service.
Parameters
- factory
- Func<IServiceProvider,TService>
The factory that will create the service instance.
Returns
This builder, such that further calls can be chained.
Remarks
See Implementation of database providers and extensions for more information and examples.
Applies to
TryAdd<TService>(TService)
Adds an implementation of an Entity Framework service only if one has not already been registered. This method can only be used for singleton services.
public virtual Microsoft.EntityFrameworkCore.Infrastructure.EntityFrameworkServicesBuilder TryAdd<TService> (TService implementation) where TService : class;abstract member TryAdd : 'Service -> Microsoft.EntityFrameworkCore.Infrastructure.EntityFrameworkServicesBuilder (requires 'Service : null)
override this.TryAdd : 'Service -> Microsoft.EntityFrameworkCore.Infrastructure.EntityFrameworkServicesBuilder (requires 'Service : null)Public Overridable Function TryAdd(Of TService As Class) (implementation As TService) As EntityFrameworkServicesBuilderType Parameters
- TService
The contract for the service.
Parameters
- implementation
- TService
The implementation of the service.
Returns
This builder, such that further calls can be chained.
Remarks
See Implementation of database providers and extensions for more information and examples.
Applies to
Entity Framework
Feedback
Coming soon: Throughout 2024 we will be phasing out GitHub Issues as the feedback mechanism for content and replacing it with a new feedback system. For more information see: https://aka.ms/ContentUserFeedback.
Submit and view feedback for