---
title: NSCollectionView.DropOperation.on
framework: appkit
role: symbol
role_heading: Case
path: appkit/nscollectionview/dropoperation/on
---

# NSCollectionView.DropOperation.on

The drop occurs at the collection view item to which the item was dragged.

## Declaration

```swift
case on
```

## See Also

### Constants

- [NSCollectionView.DropOperation.before](appkit/nscollectionview/dropoperation/before.md)