# RequestBase.TryCancel

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.core.abstractions/orleans.runtime.requestbase/) | [Methods](/orleans/docs/api/csharp/microsoft.orleans.core.abstractions/orleans.runtime.requestbase/methods/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Core.Abstractions/Runtime/GrainReference.cs#L600)

```csharp
public virtual bool TryCancel()
```

Tries to cancel the invocation.

### Returns

`true` if cancellation was requested, otherwise `false`.