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# Specifying a Custom Row View in a Nib File

View-based table view instances use `NSTableViewRowKey` to identify the nib file containing the template row view. You can specify a custom row view (without any code) by associating this key with the appropriate nib name in Interface Builder.

## Discussion

This constant is only applicable to [`NSView`](/documentation/AppKit/NSView)-based table views.

## Topics

### Constants

[`class let rowViewIdentifier: NSUserInterfaceItemIdentifier`](/documentation/AppKit/NSTableView/rowViewIdentifier)

The key associated with the identifier in the nib file containing the template row view.


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