# Registered Constructors

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.reminders/orleans.reminders.diagnostics.reminderevents.registered/)

## Registered(GrainId, string, SiloAddress?) {#constructor-orleans-runtime-grainid-string-orleans-runtime-siloaddress-nullable-c5b6bce2}

[Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.reminders/orleans.reminders.diagnostics.reminderevents.registered/constructors/constructor-orleans-runtime-grainid-string-orleans-runtime-siloaddress-nullable-c5b6bce2/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Reminders/Diagnostics/ReminderEvents.cs#L87)

```csharp
public Registered(GrainId grainId, string reminderName, SiloAddress? siloAddress)
```

Event payload for when a reminder is registered or updated.

### Parameters

- `grainId` (`GrainId`): The grain associated with the reminder.
- `reminderName` (`string`): The reminder name.
- `siloAddress` (`SiloAddress?`): The address of the silo handling this reminder.