---
title: "documentViewControllerWillUpdate(_:)"
framework: tvmlkit
role: symbol
role_heading: Instance Method
path: "tvmlkit/tvdocumentviewcontrollerdelegate/documentviewcontrollerwillupdate(_:)"
---

# documentViewControllerWillUpdate(_:)

Tells the delegate that the document will be updated.

## Declaration

```swift
optional func documentViewControllerWillUpdate(_ documentViewController: TVDocumentViewController)
```

## See Also

### Managing Document Updates

- [documentViewControllerDidUpdate(_:)](tvmlkit/tvdocumentviewcontrollerdelegate/documentviewcontrollerdidupdate(_:).md)
- [documentViewController(_:didUpdateWithContext:)](tvmlkit/tvdocumentviewcontrollerdelegate/documentviewcontroller(_:didupdatewithcontext:).md)