# GrainAddressCacheUpdate Constructors

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.core.abstractions/orleans.runtime.grainaddresscacheupdate/)

## GrainAddressCacheUpdate(GrainAddress, GrainAddress?) {#constructor-orleans-runtime-grainaddress-orleans-runtime-grainaddress-nullable-745637ab}

[Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.core.abstractions/orleans.runtime.grainaddresscacheupdate/constructors/constructor-orleans-runtime-grainaddress-orleans-runtime-grainaddress-nullable-745637ab/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Core.Abstractions/IDs/GrainAddressCacheUpdate.cs#L22-L54)

```csharp
public GrainAddressCacheUpdate(GrainAddress invalidAddress, GrainAddress? validAddress)
```

### Parameters

- `invalidAddress` (`GrainAddress`)
- `validAddress` (`GrainAddress?`)