# TickStop Fields

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.runtime/orleans.runtime.diagnostics.graintimerevents.tickstop/)

## Exception {#exception-82d87c6e}

[Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.runtime/orleans.runtime.diagnostics.graintimerevents.tickstop/fields/exception-82d87c6e/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Runtime/Diagnostics/GrainTimerEvents.cs)

```csharp
public readonly Exception? Exception
```

The exception thrown by the callback, if any.