---
title: isVertical
framework: appkit
role: symbol
role_heading: Instance Property
path: appkit/nssplitview/isvertical
---

# isVertical

A Boolean value that determines the geometric orientation of the split view’s dividers.

## Declaration

```swift
var isVertical: Bool { get set }
```

## Discussion

Discussion The default value of this property is false, which indicates horizontal dividers and views that stack one above the other (top-to-bottom) in the containing split view controller’s view. To specify vertical dividers and a horizontal (side-by-side) arrangement of views within a split view controller, implement this property to return true.