# RegexImplicitChannelSubscriptionAttribute

Package: [Microsoft.Orleans.BroadcastChannel](/orleans/docs/api/csharp/microsoft.orleans.broadcastchannel/) 10.0.0

[NuGet package](https://www.nuget.org/packages/Microsoft.Orleans.BroadcastChannel) | [Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.BroadcastChannel/SubscriberTable/Predicates/ImplicitChannelSubscriptionAttribute.cs#L109)

```csharp
public sealed class RegexImplicitChannelSubscriptionAttribute : ImplicitChannelSubscriptionAttribute
```

The [Orleans.RegexImplicitStreamSubscription] attribute is used to mark grains as implicit stream subscriptions by filtering stream namespaces to subscribe using a regular expression.

## Constructors

- [RegexImplicitChannelSubscriptionAttribute(string)](/orleans/docs/api/csharp/microsoft.orleans.broadcastchannel/orleans.regeximplicitchannelsubscriptionattribute/constructors/constructor-string-383c688c/)