---
title: mustHold
framework: appkit
role: symbol
role_heading: Type Property
path: appkit/nsstackview/visibilitypriority/musthold
---

# mustHold

The default value, and maximum Auto Layout priority, that results in a view never detaching from the stack view.

## Declaration

```swift
static var mustHold: NSStackView.VisibilityPriority { get }
```

## See Also

### Priorities

- [detachOnlyIfNecessary](appkit/nsstackview/visibilitypriority/detachonlyifnecessary.md)
- [notVisible](appkit/nsstackview/visibilitypriority/notvisible.md)