---
title: userInterfaceLayoutDirection
framework: appkit
role: symbol
role_heading: Instance Property
path: appkit/nsoutlineview/userinterfacelayoutdirection
---

# userInterfaceLayoutDirection

The user interface layout direction.

## Declaration

```swift
var userInterfaceLayoutDirection: NSUserInterfaceLayoutDirection { get set }
```

## Discussion

Discussion When set to NSUserInterfaceLayoutDirection.rightToLeft, the outline view displays the disclosure triangle to the right of the cell instead of the left. The default value is NSUserInterfaceLayoutDirection.leftToRight.