# IStreamNamespacePredicateProvider Methods

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.streaming/orleans.streams.istreamnamespacepredicateprovider/)

## TryGetPredicate(string, IStreamNamespacePredicate) {#trygetpredicate-string-out-orleans-streams-istreamnamespacepredicate-4dbf4415}

[Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.streaming/orleans.streams.istreamnamespacepredicateprovider/methods/trygetpredicate-string-out-orleans-streams-istreamnamespacepredicate-4dbf4415/)

```csharp
public abstract bool TryGetPredicate(string predicatePattern, out IStreamNamespacePredicate predicate)
```

Get the predicate matching the provided pattern. Returns `false` if this provider cannot match the predicate.

### Parameters

- `predicatePattern` (`string`)
- `predicate` (`IStreamNamespacePredicate`)