# ImmutableArrayCodec<T>.ConvertToSurrogate(ImmutableArray<T>, ImmutableArraySurrogate<T>)

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.serialization/orleans.serialization.codecs.immutablearraycodec-1/) | [Methods](/orleans/docs/api/csharp/microsoft.orleans.serialization/orleans.serialization.codecs.immutablearraycodec-1/methods/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Serialization/Codecs/ImmutableArrayCodec.cs#L31)

```csharp
public override void ConvertToSurrogate(ImmutableArray<T> value, ref ImmutableArraySurrogate<T> surrogate)
```

Converts a value to the surrogate type.

### Parameters

- `value` (`ImmutableArray<T>`): The value.
- `surrogate` (`ImmutableArraySurrogate<T>`): The surrogate.