# IOnBroadcastChannelSubscribed.OnSubscribed(IBroadcastChannelSubscription)

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.broadcastchannel/orleans.broadcastchannel.ionbroadcastchannelsubscribed/) | [Methods](/orleans/docs/api/csharp/microsoft.orleans.broadcastchannel/orleans.broadcastchannel.ionbroadcastchannelsubscribed/methods/)

```csharp
public abstract Task OnSubscribed(IBroadcastChannelSubscription streamSubscription)
```

### Parameters

- `streamSubscription` (`IBroadcastChannelSubscription`)