# IdSpanCodec Methods

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.core.abstractions/orleans.runtime.idspancodec/)

## ReadRaw(Reader<TInput>) {#readraw-1-ref-orleans-serialization-buffers-reader-tinput-6bfc248c}

[Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.core.abstractions/orleans.runtime.idspancodec/methods/readraw-1-ref-orleans-serialization-buffers-reader-tinput-6bfc248c/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Core.Abstractions/IDs/IdSpanCodec.cs#L67-L73)

```csharp
public static IdSpan ReadRaw<TInput>(ref Reader<TInput> reader)
```

Reads an [IdSpan](/orleans/docs/api/csharp/microsoft.orleans.core.abstractions/orleans.runtime.idspan/) value from a reader without any field framing.

### Parameters

- `reader` (`Reader<TInput>`): The reader.

### Returns

An [IdSpan](/orleans/docs/api/csharp/microsoft.orleans.core.abstractions/orleans.runtime.idspan/).

## ReadValue(Reader&lt;TInput&gt;, Field) {#readvalue-1-ref-orleans-serialization-buffers-reader-tinput-orleans-serializatio-a5ad366f}

[Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.core.abstractions/orleans.runtime.idspancodec/methods/readvalue-1-ref-orleans-serialization-buffers-reader-tinput-orleans-serializatio-a5ad366f/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Core.Abstractions/IDs/IdSpanCodec.cs#L80-L89)

```csharp
public IdSpan ReadValue<TInput>(ref Reader<TInput> reader, Field field)
```

Reads a value.

### Parameters

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

### Returns

The value.

## WriteField(Writer&lt;TBufferWriter&gt;, uint, Type, IdSpan) {#writefield-1-ref-orleans-serialization-buffers-writer-tbufferwriter-uint-system-c7a272f9}

[Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.core.abstractions/orleans.runtime.idspancodec/methods/writefield-1-ref-orleans-serialization-buffers-writer-tbufferwriter-uint-system-c7a272f9/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Core.Abstractions/IDs/IdSpanCodec.cs#L27-L37)

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

Writes a field.

### Parameters

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

## WriteRaw(Writer&lt;TBufferWriter&gt;, IdSpan) {#writeraw-1-ref-orleans-serialization-buffers-writer-tbufferwriter-orleans-runtim-ad96115c}

[Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.core.abstractions/orleans.runtime.idspancodec/methods/writeraw-1-ref-orleans-serialization-buffers-writer-tbufferwriter-orleans-runtim-ad96115c/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Core.Abstractions/IDs/IdSpanCodec.cs#L50-L57)

```csharp
public static void WriteRaw<TBufferWriter>(ref Writer<TBufferWriter> writer, IdSpan value)
```

Writes an [IdSpan](/orleans/docs/api/csharp/microsoft.orleans.core.abstractions/orleans.runtime.idspan/) value to the provided writer without field framing.

### Parameters

- `writer` (`Writer<TBufferWriter>`): The writer.
- `value` (`IdSpan`): The value to write.