# Int64Codec

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/IntegerCodec.cs#L487)

```csharp
public sealed class Int64Codec : IFieldCodec, IFieldCodec<long>
```

Serializer for `System.Int64`.

## Constructors

- [Int64Codec](/orleans/docs/api/csharp/microsoft.orleans.serialization/orleans.serialization.codecs.int64codec/constructors/constructor-e9929b77/)

## Methods

- [ReadValue(Reader&lt;TInput&gt;, Field)](/orleans/docs/api/csharp/microsoft.orleans.serialization/orleans.serialization.codecs.int64codec/methods/readvalue-1-ref-orleans-serialization-buffers-reader-tinput-orleans-serializatio-f938b938/)
- [WriteField(Writer&lt;TBufferWriter&gt;, uint, Type, long, Type)](/orleans/docs/api/csharp/microsoft.orleans.serialization/orleans.serialization.codecs.int64codec/methods/writefield-1-ref-orleans-serialization-buffers-writer-tbufferwriter-uint-system-b23c0ef4/)
- [WriteField(Writer&lt;TBufferWriter&gt;, uint, long)](/orleans/docs/api/csharp/microsoft.orleans.serialization/orleans.serialization.codecs.int64codec/methods/writefield-1-ref-orleans-serialization-buffers-writer-tbufferwriter-uint-long-d7b9c254/)