Swift custom UITableViewCell label is always nil

Question

I've been stuck with this problem for days, so I'd be really happy if someone could help. I'm trying to create a dynamic UITableView, for which I created a custom UITableView subclass and I've created a custom UITableViewCell subclass as well, because I need several UILabels and a UIButton in each cell. The cell is created, but the problem is that the value of the labels is always nil, hence the cell isn't displayed properly. This is, how the storyboard looks like, and this is what I see while running the program.

Here's my UITableViewCell subclass:

import UIKit

class QuestionTableViewCell: UITableViewCell {

    @IBOutlet var student: UILabel!
    @IBOutlet var labDesk: UILabel!
    @IBOutlet var topic: UILabel!
    @IBOutlet var answers: UILabel!

}

and my UITableView subclass:

import UIKit

class QuestionViewController: UITableViewController, UITableViewDelegate, UITableViewDataSource {

    @IBOutlet var table: UITableView!
     struct Question {
        var student: String
        var labDesk: String
        var topic: String
        var answered: String
    }

    override func viewDidLoad() {
        super.viewDidLoad()
        table.estimatedRowHeight = 50
        table.dataSource = self
        table.delegate = self
        self.table.registerClass(QuestionTableViewCell.self, forCellReuseIdentifier: "cell")
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
    }

    override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
        return 1
    }

    override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return 1
    }

    override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCellWithIdentifier("cell") as QuestionTableViewCell
        cell.student.text = "random string"
        cell.labDesk?.text = "25/A"
        cell.topic?.text = "string"
        cell.answers?.text = "3"
        return cell
    }
}

Answer 1

If you're using a cell with a nib then make sure that you are registering the cell with the table view using registerNib:forCellReuseIdentifier:. If the cell just has a class then use registerClass:forCellReuseIdentifier:.

Answer 2

If you are using a table cell with Xib. you need to register your cell with ..

register(_:forCellReuseIdentifier:)