---
title: columnConfigurationDidChangeNotification
framework: appkit
role: symbol
role_heading: Type Property
path: appkit/nsbrowser/columnconfigurationdidchangenotification
---

# columnConfigurationDidChangeNotification

Notifies the delegate when the width of a browser column has changed.

## Declaration

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

## Discussion

Discussion The notification object is the browser whose column sizes need to be made persistent. This notification does not contain a userInfo dictionary. If the user resizes more than one column, a single notification is posted when the user is finished resizing.

## See Also

### Related Documentation

- [browserColumnConfigurationDidChange(_:)](appkit/nsbrowserdelegate/browsercolumnconfigurationdidchange(_:).md)