# ILifecycleParticipant<TLifecycleObservable>

Package: [Microsoft.Orleans.Core.Abstractions](/orleans/docs/api/csharp/microsoft.orleans.core.abstractions/) 10.0.0

[NuGet package](https://www.nuget.org/packages/Microsoft.Orleans.Core.Abstractions)

```csharp
public interface ILifecycleParticipant<TLifecycleObservable>
    where TLifecycleObservable : Orleans.ILifecycleObservable
```

Provides hook to take part in lifecycle. Also may act as a signal interface indicating that an object can take part in lifecycle.

## Type parameters

- `TLifecycleObservable`: The type of lifecycle being observed.

## Methods

- [Participate(TLifecycleObservable)](/orleans/docs/api/csharp/microsoft.orleans.core.abstractions/orleans.ilifecycleparticipant-1/methods/participate-tlifecycleobservable-6cecca25/)