# SubscriptionUnregistered Fields

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.streaming/orleans.streaming.diagnostics.streamingevents.subscriptionunregistered/)

## StreamId {#streamid-c840d0ea}

[Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.streaming/orleans.streaming.diagnostics.streamingevents.subscriptionunregistered/fields/streamid-c840d0ea/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Streaming/Diagnostics/StreamingEvents.cs)

```csharp
public readonly StreamId StreamId
```

The stream ID.

## SubscriptionId {#subscriptionid-c06dad43}

[Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.streaming/orleans.streaming.diagnostics.streamingevents.subscriptionunregistered/fields/subscriptionid-c06dad43/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Streaming/Diagnostics/StreamingEvents.cs)

```csharp
public readonly Guid SubscriptionId
```

The subscription ID.