---
title: rowsDidChangeNotification
framework: appkit
role: symbol
role_heading: Type Property
path: appkit/nsruleeditor/rowsdidchangenotification
---

# rowsDidChangeNotification

This notification is posted to the default notification center whenever the view’s rows change.

## Declaration

```swift
class let rowsDidChangeNotification: NSNotification.Name
```

## Discussion

Discussion The object is the rule editor; there is no userInfo object. To observe this notification using Swift concurrency, use NSRuleEditor.RowsDidChangeMessage.