# RegisterActivatorAttribute

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

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

```csharp
public sealed class RegisterActivatorAttribute : Attribute
```

When applied to a type, indicates that the type is an activator and that it should be automatically registered.

## Constructors

- [RegisterActivatorAttribute](/orleans/docs/api/csharp/microsoft.orleans.serialization.abstractions/orleans.registeractivatorattribute/constructors/constructor-cf532fb5/)