'NSTableCellView not displaying its stringValue

The cells themselves appear with the amount of items in the items array (I can select them), but they don't have the title assigned to them.

...

let items: Array<String>? = // contains only strings (also without control characters)

@IBOutlet weak var tableView: NSTableView!
    
override func viewDidLoad() {
    super.viewDidLoad()
        
    self.tableView.delegate = self
    self.tableView.dataSource = self
}
    
func numberOfRows(in tableView: NSTableView) -> Int {
    return self.items!.count
}
    
func tableView(_ tableView: NSTableView, viewFor tableColumn: NSTableColumn?, row: Int) -> NSView? {
    if let cell = tableView.makeView(withIdentifier: tableColumn!.identifier, owner: self) as? NSTableCellView {
        cell.textField?.stringValue = self.items![row]
        return cell
    }
        
    return nil
}

...
swiftmacosnstableview


Solution 1:[1]

For some reason I had to select the table view on the view hierarchy and set the content mode to cell based and back to view based. Now it works.

Sources

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Source: Stack Overflow

Solution Source
Solution 1 Alexandra

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