I'm new to C#, in fact, this is one of the first projects I've tried to start on my own. I am curious why the TextBlock will not refresh with the following code? The WPF window does not even show up when I add the "while" loop to the code. I just want this to have a real time display of the days since I was born.

Please help me out or give me constructive direction.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace daysAliveWPF
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();

            DateTime myBirthday = new DateTime(1984, 01, 19);

            while (true)
            {
                TimeSpan daysAlive = DateTime.Now.Subtract(myBirthday);
                MyTextBlock.Text = daysAlive.TotalDays.ToString();
            }
        }

    }
}

Similar code has worked in a Console Window application, so I don't understand what's going on here. Console Application code snip that did work is:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace DisplayRealTime
{
    class Program
    {
        static void Main(string[] args)
        {
            DateTime myBirthday = new DateTime(1984, 06, 19);


            while (true)
            {

                TimeSpan daysAlive = DateTime.Now.Subtract(myBirthday);
                Console.Write("\rTotal Days Alive: {0}", daysAlive.TotalDays.ToString(".#####"));

            }

        }
    }
}

Thank you!