# Deactivating Fields

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.runtime/orleans.runtime.diagnostics.grainlifecycleevents.deactivating/)

## Reason {#reason-9022e680}

[Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.runtime/orleans.runtime.diagnostics.grainlifecycleevents.deactivating/fields/reason-9022e680/)

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

```csharp
public readonly DeactivationReason Reason
```

The reason for deactivation.