# ImmutableHashSetCodec<T> Methods

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

## ConvertFromSurrogate(ImmutableHashSetSurrogate<T>) {#convertfromsurrogate-ref-orleans-serialization-codecs-immutablehashsetsurrogate-43edbf93}

[Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.serialization/orleans.serialization.codecs.immutablehashsetcodec-1/methods/convertfromsurrogate-ref-orleans-serialization-codecs-immutablehashsetsurrogate-43edbf93/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Serialization/Codecs/ImmutableHashSetCodec.cs#L27)

```csharp
public override ImmutableHashSet<T> ConvertFromSurrogate(ref ImmutableHashSetSurrogate<T> surrogate)
```

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

### Parameters

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

### Returns

The value.

## ConvertToSurrogate(ImmutableHashSet&lt;T&gt;, ImmutableHashSetSurrogate&lt;T&gt;) {#converttosurrogate-system-collections-immutable-immutablehashset-t-ref-orleans-s-75c4b421}

[Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.serialization/orleans.serialization.codecs.immutablehashsetcodec-1/methods/converttosurrogate-system-collections-immutable-immutablehashset-t-ref-orleans-s-75c4b421/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Serialization/Codecs/ImmutableHashSetCodec.cs#L32-L34)

```csharp
public override void ConvertToSurrogate(ImmutableHashSet<T> value, ref ImmutableHashSetSurrogate<T> surrogate)
```

Converts a value to the surrogate type.

### Parameters

- `value` (`ImmutableHashSet<T>`): The value.
- `surrogate` (`ImmutableHashSetSurrogate<T>`): The surrogate.