# TickStop Constructors

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

## TickStop(IGrainContext, IGrainTimer, Exception?) {#constructor-orleans-runtime-igraincontext-orleans-runtime-igraintimer-system-exc-6c4f85a5}

[Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.runtime/orleans.runtime.diagnostics.graintimerevents.tickstop/constructors/constructor-orleans-runtime-igraincontext-orleans-runtime-igraintimer-system-exc-6c4f85a5/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Runtime/Diagnostics/GrainTimerEvents.cs#L88-L93)

```csharp
public TickStop(IGrainContext grainContext, IGrainTimer timer, Exception? exception)
```

Event payload for when a grain timer tick callback has completed.

### Parameters

- `grainContext` (`IGrainContext`): The grain context that owns the timer.
- `timer` (`IGrainTimer`): The timer instance.
- `exception` (`Exception?`): The exception thrown by the callback, if any.