# ValueTupleCodec<T1, T2, T3>.WriteField(Writer<TBufferWriter>, uint, Type, (T1, T2, T3))

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.serialization/orleans.serialization.codecs.valuetuplecodec-3/) | [Methods](/orleans/docs/api/csharp/microsoft.orleans.serialization/orleans.serialization.codecs.valuetuplecodec-3/methods/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Serialization/Codecs/ValueTupleCodec.cs#L294-L302)

```csharp
public void ValueTupleCodec<T1, T2, WriteField<TBufferWriter>(ref Writer<TBufferWriter> writer, uint fieldIdDelta, Type expectedType, (T1, T2, T3) value)
```

Writes a field.

### Parameters

- `writer` (`Writer<TBufferWriter>`): The writer.
- `fieldIdDelta` (`uint`): The field identifier delta.
- `expectedType` (`Type`): The expected type.
- `value` (`(T1, T2, T3)`): The value.