如何在Xamarin.iOS中实时更新ViewController字段

public partial class ViewController : UIViewController
{
    UILabel myLabel;

    // Other code...
}

public override void ViewDidLoad()
{
    base.ViewDidLoad();

    // Initialize and configure the UILabel
    myLabel = new UILabel();
    myLabel.Frame = new CGRect(50, 50, 200, 30);
    myLabel.Text = "Initial Value";

    // Add the UILabel to the view
    View.AddSubview(myLabel);

    // Other code...
}

private void UpdateLabel(string newValue)
{
    myLabel.Text = newValue;
}

// Example: Update the label when a button is tapped
partial void ButtonTapped(UIButton sender)
{
    string newValue = "New Value";
    UpdateLabel(newValue);
}