public partial class MainPage : PhoneApplicationPage
    {
        // Constructor
        public MainPage()
        {
            InitializeComponent();

            DataContext = this;

            WorkoutStatus = "Idle";
            RepsRemaining = 0;
            TimeRemaining = 0.00;
        }

        private string workoutStatus { get; set; }
        public string WorkoutStatus
        {
            get { return WorkoutStatus; }

            set
            {
                if (WorkoutStatus == value) return;
                workoutStatus = value;
                NotifyPropertyChanged("WorkoutStatus");
            }
        }

        private int repsRemaining;
        public int RepsRemaining
        {
            get { return repsRemaining; }

            set
            {
                if (repsRemaining == value) return;
                repsRemaining = value;
                NotifyPropertyChanged("RepsRemaining");
            }
        }

        private double timeRemaining;
        public double TimeRemaining
        {
            get { return timeRemaining; }

            set
            {
                if (timeRemaining == value) return;
                timeRemaining = value;
                NotifyPropertyChanged("TimeRemaining");
            }
        }

        public event PropertyChangedEventHandler PropertyChanged;
        public void NotifyPropertyChanged(string propertyName)
        {
            if (PropertyChanged != null)
            {
                PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
            }
        }