# ImmutableListCodec<T> Constructors

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.serialization/orleans.serialization.codecs.immutablelistcodec-1/)

## ImmutableListCodec<T>(IValueSerializer<ImmutableListSurrogate<T>>) {#constructor-orleans-serialization-serializers-ivalueserializer-orleans-serializa-a01bb4b3}

[Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.serialization/orleans.serialization.codecs.immutablelistcodec-1/constructors/constructor-orleans-serialization-serializers-ivalueserializer-orleans-serializa-a01bb4b3/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Serialization/Codecs/ImmutableListCodec.cs#L21-L23)

```csharp
public ImmutableListCodec(IValueSerializer<ImmutableListSurrogate<T>> surrogateSerializer)
```

Initializes a new instance of the `Orleans.Serialization.Codecs.ImmutableListCodec-1` class.

### Parameters

- `surrogateSerializer` (`IValueSerializer<ImmutableListSurrogate<T>>`): The surrogate serializer.