# Invokable_ITransactionManagerExtension_GrainReference_Ext_AC4A9AEB.SetTarget(ITargetHolder)

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.transactions/orleanscodegen.orleans.transactions.abstractions.invokable-itransactionmanagerextension-grainreference-ext-ac4a9aeb/) | [Methods](/orleans/docs/api/csharp/microsoft.orleans.transactions/orleanscodegen.orleans.transactions.abstractions.invokable-itransactionmanagerextension-grainreference-ext-ac4a9aeb/methods/)

```csharp
public override void SetTarget(ITargetHolder holder)
```

Sets the invocation target from an instance of [ITargetHolder](/orleans/docs/api/csharp/microsoft.orleans.serialization/orleans.serialization.invocation.itargetholder/).

### Parameters

- `holder` (`ITargetHolder`): The invocation target.