---
title: NSPageController.ObjectIdentifier
framework: appkit
role: symbol
role_heading: Type Alias
path: appkit/nspagecontroller/objectidentifier
---

# NSPageController.ObjectIdentifier

## Declaration

```swift
typealias ObjectIdentifier = String
```

## See Also

### Managing View Controllers

- [pageController(_:identifierFor:)](appkit/nspagecontrollerdelegate/pagecontroller(_:identifierfor:).md)
- [pageController(_:viewControllerForIdentifier:)](appkit/nspagecontrollerdelegate/pagecontroller(_:viewcontrollerforidentifier:).md)
- [pageController(_:prepare:with:)](appkit/nspagecontrollerdelegate/pagecontroller(_:prepare:with:).md)
- [pageController(_:frameFor:)](appkit/nspagecontrollerdelegate/pagecontroller(_:framefor:).md)