# IInvokable.SetArgument(int, object)

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.serialization/orleans.serialization.invocation.iinvokable/) | [Methods](/orleans/docs/api/csharp/microsoft.orleans.serialization/orleans.serialization.invocation.iinvokable/methods/)

```csharp
public abstract void SetArgument(int index, object value)
```

Sets the argument at the specified index.

### Parameters

- `index` (`int`): The argument index.
- `value` (`object`): The argument value