# Sandbox.WebSocket.DataReceivedHandler.BeginInvoke

```csharp
System.IAsyncResult BeginInvoke(System.Span<byte> data, System.AsyncCallback callback, object object)
```

### Parameters

- `data` (`System.Span<byte>`)
- `callback` (`System.AsyncCallback`)
- `object` (`object`)

### Returns

`System.IAsyncResult`

Declared in [Sandbox.WebSocket.DataReceivedHandler](/api/Sandbox.WebSocket.DataReceivedHandler).
Assembly: `Sandbox.Engine`.