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# deselectColumn(_:)

Deselects the column at the specified index if it’s selected.

```
func deselectColumn(_ column: Int)
```

## Parameters

`column`

The index in the [`tableColumns`](/documentation/AppKit/NSTableView/tableColumns) array of the column to deselect.

## Discussion

Deselects the column at `columnIndex` if it’s selected, regardless of whether empty selection is allowed.

If the selection does in fact change, this method posts [`selectionDidChangeNotification`](/documentation/AppKit/NSTableView/selectionDidChangeNotification) to the default notification center.

If the indicated column was the last column selected by the user, the column nearest it effectively becomes the last selected column. In case of a tie, priority is given to the column on the left.

This method doesn’t check with the delegate before changing the selection.

## See Also

[`- (void) selectRow:(NSInteger) row byExtendingSelection:(BOOL) extend;`](/documentation/AppKit/NSTableView/selectRow:byExtendingSelection:)

Selects a row at the specified index, optionally extending any existing selection.

[`var allowsEmptySelection: Bool`](/documentation/AppKit/NSTableView/allowsEmptySelection)

A Boolean value indicating whether the table view allows the user to select zero columns or rows.


---

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