# ImmutableListCodec<T>.ConvertFromSurrogate(ImmutableListSurrogate<T>)

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

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Serialization/Codecs/ImmutableListCodec.cs#L26)

```csharp
public override ImmutableList<T> ConvertFromSurrogate(ref ImmutableListSurrogate<T> surrogate)
```

Converts a value from the surrogate type to the field type.

### Parameters

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

### Returns

The value.