# UnknownFieldMarker

Package: [Microsoft.Orleans.Serialization](/orleans/docs/api/csharp/microsoft.orleans.serialization/) 10.0.0

[NuGet package](https://www.nuget.org/packages/Microsoft.Orleans.Serialization) | [Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Serialization/Codecs/UnknownFieldMarker.cs#L8)

```csharp
public sealed class UnknownFieldMarker
```

Marker object used to denote an unknown field and its position into a stream of data.

## Constructors

- [UnknownFieldMarker(Field, long)](/orleans/docs/api/csharp/microsoft.orleans.serialization/orleans.serialization.codecs.unknownfieldmarker/constructors/constructor-orleans-serialization-wireprotocol-field-long-229dbd3e/)

## Properties

- [Field](/orleans/docs/api/csharp/microsoft.orleans.serialization/orleans.serialization.codecs.unknownfieldmarker/properties/field-2ce7efc6/)
- [Position](/orleans/docs/api/csharp/microsoft.orleans.serialization/orleans.serialization.codecs.unknownfieldmarker/properties/position-ab107d33/)

## Methods

- [ToString](/orleans/docs/api/csharp/microsoft.orleans.serialization/orleans.serialization.codecs.unknownfieldmarker/methods/tostring-83a2d45c/)