---
title: UISplitViewController.Column.supplementary
framework: uikit
role: symbol
role_heading: Case
path: uikit/uisplitviewcontroller/column/supplementary
---

# UISplitViewController.Column.supplementary

The column for the supplementary view controller.

## Declaration

```swift
case supplementary
```

## Discussion

Discussion This value only takes effect when the split view controller’s style property is UISplitViewController.Style.tripleColumn.

## See Also

### Constants

- [UISplitViewController.Column.primary](uikit/uisplitviewcontroller/column/primary.md)
- [UISplitViewController.Column.secondary](uikit/uisplitviewcontroller/column/secondary.md)
- [UISplitViewController.Column.compact](uikit/uisplitviewcontroller/column/compact.md)
- [UISplitViewController.Column.inspector](uikit/uisplitviewcontroller/column/inspector.md)