So I have a NSTextField, which is bound to the objectValue of the NSTableCellView. I'm filling in the table using NSTableViewDataSource via:
func tableView(tableView: NSTableView, objectValueForTableColumn tableColumn: NSTableColumn?, row: Int) -> AnyObject?
I've put a NULL Placeholder (for example "NULL") which is showing in both cases: when I retu nil and when I retu "" (empty string) as objectValue.
What I'm expecting is the Placeholder to appear only when the value is nil. Please advise ... maybe I'm doing something fundamentally wrong.