Button hangs with infinite loop
<p>if I start my C# Windows Form Application,  buttons hangs, because it is endless cycle.  I want to see the change of variable value from button2 click into  infinite loop  of button1  through the global variable</p>

<pre><code>using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace XX_5
{
    public partial class Form1 : Form
    {
        private int g;

        public Form1()
        {
            InitializeComponent();
        }   
        private void button1_Click(object sender, EventArgs e)
        {           
            int i = 0;

            for (;;)
            {   
                textBox1.AppendText("ID: [" + i++ + "] Variable value: [" + g + "]\n");    
            }
        }    
        private void button2_Click(object sender, EventArgs e)
        {
            g = 1;
        }
    }
}
</code></pre>