# Sandbox.Menu.LoadingDownload.TotalSize

```csharp
long TotalSize { get; set; }
```

What it'll fetch, in bytes - reserved up front when it's known in advance, exact once the download
starts. 0 when it's all in the download cache already and there's nothing to fetch.

Declared in [Sandbox.Menu.LoadingDownload](/api/Sandbox.Menu.LoadingDownload).
Assembly: `Sandbox.Engine`.