# ISerializationCallbacks<T>.OnSerializing(T)

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.serialization/orleans.serialization.codecs.iserializationcallbacks-1/) | [Methods](/orleans/docs/api/csharp/microsoft.orleans.serialization/orleans.serialization.codecs.iserializationcallbacks-1/methods/)

```csharp
public abstract void OnSerializing(T value)
```

Called when serializing.

### Parameters

- `value` (`T`): The value.