# Factory<TParam1, TParam2, TInstance> Methods

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.core/orleans.factory-3/)

## BeginInvoke(TParam1, TParam2, AsyncCallback, object) {#begininvoke-tparam1-tparam2-system-asynccallback-object-42ae6d5b}

[Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.core/orleans.factory-3/methods/begininvoke-tparam1-tparam2-system-asynccallback-object-42ae6d5b/)

```csharp
public virtual IAsyncResult Factory<TParam1, TParam2, BeginInvoke(TParam1 param1, TParam2 param2, AsyncCallback callback, object @object)
```

### Parameters

- `param1` (`TParam1`)
- `param2` (`TParam2`)
- `callback` (`AsyncCallback`)
- `object` (`object`)

## EndInvoke(IAsyncResult) {#endinvoke-system-iasyncresult-5c442859}

[Dedicated page](/orleans/docs/api/csharp/microsoft.orleans.core/orleans.factory-3/methods/endinvoke-system-iasyncresult-5c442859/)

```csharp
public virtual TInstance Factory<TParam1, TParam2, EndInvoke(IAsyncResult result)
```

### Parameters

- `result` (`IAsyncResult`)