Registers that the same a single instance of type TImplementation will be
returned every time an TService type is requested. If
TService and TImplementation represent the same
type, the type is registered by itself. TImplementation must be thread-safe
when working in a multi-threaded environment.
If TImplementation implements IDisposable, a created instance will
get disposed when Container.Dispose gets called.
Namespace: SimpleInjector
Assembly: SimpleInjector (in SimpleInjector.dll) Version: 5.3.0
Syntax
public void RegisterSingleton<TService, TImplementation>() where TService : class where TImplementation : class, TService
Type Parameters
- TService
- The interface or base type that can be used to retrieve the instances.
- TImplementation
- The concrete type that will be registered.
Exceptions
| Exception | Condition |
|---|---|
| InvalidOperationException | Thrown when this container instance is locked and can not be altered, or when the TService has already been registered. |
| ArgumentException | Thrown when the given TImplementation type is not a type that can be created by the container. |
See Also