# StreamIdentity.Namespace

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.streaming/orleans.streams.streamidentity/) | [Properties](/orleans/docs/api/csharp/microsoft.orleans.streaming/orleans.streams.streamidentity/properties/)

[Source](https://github.com/dotnet/orleans/blob/b7a9e3e1c9c54b3cec3a467c5734bf7744541bcf/src/Orleans.Streaming/Core/StreamIdentity.cs#L38)

```csharp
[Orleans.Id(1)]
public string? Namespace
```

Gets the stream namespace.