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# NSTableView.DropOperation

`NSTableView` defines these constants to specify drop operations.

```
enum DropOperation
```

## Overview

For example, given a table with `n` rows (numbered with row `0` at the top visually), a row of `n–1` and operation of `NSTableViewDropOn` would specify a drop on the last row. To specify a drop below the last row, you use a row of `n` and `NSTableViewDropAbove` for the operation.

## Topics

### Constants

[`NSTableView.DropOperation.on`](/documentation/AppKit/NSTableView/DropOperation/on)

Specifies that the drop should occur on the specified row.

[`NSTableView.DropOperation.above`](/documentation/AppKit/NSTableView/DropOperation/above)

Specifies that the drop should occur above the specified row.

[`NSTableView.DropOperation.on`](/documentation/AppKit/NSTableView/DropOperation/on)

Specifies that the drop should occur on the specified row.

[`NSTableView.DropOperation.above`](/documentation/AppKit/NSTableView/DropOperation/above)

Specifies that the drop should occur above the specified row.


---

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