Swift - Get row index with checkbox in NSTableView [duplicate] - swift

Question

This question already has answers here:
Get button's row in view based table
(5 answers)
Closed 4 years ago.
I'm learning Cocoa in Swift. I created a NSTableView with Viewbased.
Simple tableview
I also connected the checkbox action to ViewController. But when I clicked the checkbox, it printed -1 instead of the row index. I have to select the row first then click the checkbox to get the right index number. Are there anyway to get the row index with every single checkbox or button on each row? Here is my code:
import Cocoa
let data: [String] = ["Apple", "Microsoft", "IBM", "Tesla", "SpaceX",
"Boeing" , "Nasa"]
class ViewController: NSViewController, NSTableViewDelegate,
NSTableViewDataSource {
override func viewDidLoad() {
super.viewDidLoad()
self.table.delegate = self
self.table.dataSource = self
self.table.reloadData()
// Do any additional setup after loading the view.
}
#IBOutlet weak var table: NSTableView!
#IBAction func CheckClicked(_ sender: Any) {
print(self.table.selectedRow)
}
override var representedObject: Any? {
didSet {
// Update the view, if already loaded.
}
}
func numberOfRows(in tableView: NSTableView) -> Int {
return data.count
}
func tableView(_ tableView: NSTableView, viewFor tableColumn:
NSTableColumn?, row: Int) -> NSView? {
if (tableColumn?.identifier)!.rawValue == "NameColumn"
{
if let cell = tableView.makeView(withIdentifier:
NSUserInterfaceItemIdentifier(rawValue: "NameColumn"), owner: self)
as? NSTableCellView
{
cell.textField?.stringValue = data[row]
return cell
}
}
else if (tableColumn?.identifier)!.rawValue == "CheckColumn"
{
if let cell = tableView.makeView(withIdentifier:
NSUserInterfaceItemIdentifier(rawValue: "CheckColumn"), owner: self)
as? NSButton
{
return cell
}
}
return nil
}
func tableViewSelectionDidChange(_ notification: Notification) {
print(self.table.selectedRow)
}
}

Answer 1

This is what you are looking for, but a better implementation would be to use the action with a NSTableCellView subclass.
#IBAction func CheckClicked(_ sender: NSButton) {
// print(self.table.selectedRow)
let row = table.row(for: sender)
print("Button row \(row)")
}

Answer 2

I can only create a subclass based on NSButton.
class myCustomView: NSButton{
#IBOutlet weak var CheckButton: NSButtonCell!
}
Although I can't change the title of these button cell.
if (tableColumn?.identifier)!.rawValue == "CheckColumn"
{
if let cell = tableView.makeView(withIdentifier:
NSUserInterfaceItemIdentifier(rawValue: "CheckColumn"), owner: self)
as? myCustomView
{
cell.CheckButton.title = data[row]
return cell
}
}
I don't know why Xcode doens't let me create a subclass based on NSTableCellView.