# ImplicitChannelSubscriptionAttribute.ImplicitChannelSubscriptionAttribute

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.broadcastchannel/orleans.implicitchannelsubscriptionattribute/) | [Constructors](/orleans/docs/api/csharp/microsoft.orleans.broadcastchannel/orleans.implicitchannelsubscriptionattribute/constructors/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.BroadcastChannel/SubscriberTable/Predicates/ImplicitChannelSubscriptionAttribute.cs#L31-L34)

```csharp
public ImplicitChannelSubscriptionAttribute()
```

Used to subscribe to all stream namespaces.