# Codec_InvokeMethodOptions Methods

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.core.abstractions/orleanscodegen.orleans.codegeneration.codec-invokemethodoptions/)

## ReadValue(Reader<TReaderInput>, Field) {#readvalue-1-ref-orleans-serialization-buffers-reader-treaderinput-orleans-serial-183d6610}

[Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.core.abstractions/orleanscodegen.orleans.codegeneration.codec-invokemethodoptions/methods/readvalue-1-ref-orleans-serialization-buffers-reader-treaderinput-orleans-serial-183d6610/)

```csharp
public InvokeMethodOptions ReadValue<TReaderInput>(ref Reader<TReaderInput> reader, Field field)
```

Reads a value.

### Parameters

- `reader` (`Reader<TReaderInput>`): The reader.
- `field` (`Field`): The field.

### Returns

The value.

## WriteField(Writer&lt;TBufferWriter&gt;, uint, Type, InvokeMethodOptions) {#writefield-1-ref-orleans-serialization-buffers-writer-tbufferwriter-uint-system-fcfdfb9a}

[Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.core.abstractions/orleanscodegen.orleans.codegeneration.codec-invokemethodoptions/methods/writefield-1-ref-orleans-serialization-buffers-writer-tbufferwriter-uint-system-fcfdfb9a/)

```csharp
public void WriteField<TBufferWriter>(ref Writer<TBufferWriter> writer, uint fieldIdDelta, Type expectedType, InvokeMethodOptions value)
```

Writes a field.

### Parameters

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