Swift 3 : Pass data to container view

[Tung_Vux (Tùng Vux)]

As title, i’m trying to pass value of slider to containerView but it’s not work

here’s my code:

class ViewController: UIViewController {

@IBOutlet weak var ValueLabel: UILabel!
@IBOutlet weak var sliderControll: UISlider!

override func viewDidLoad() {
    super.viewDidLoad()
    sliderControll.maximumValue = 5
    sliderControll.minimumValue = 0
    sliderControll.value = 0
    sliderControll.isContinuous = false
    self.sliderControll.addTarget(self, action: #selector(ViewController.printData), for: UIControlEvents.valueChanged)
    
}
func printData(){
    ValueLabel?.text = String(self.sliderControll.value)
}

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
    
    if segue.identifier == "dataID" {
        let destination = segue.destination as! SubViewController
    
        destination.myString = (ValueLabel?.text)! as String
    }
}

}

thanks!

[qloved (Quân)]

Any error? Have you try to debug it before asking some one? You should give more detail about problems!