title: Control does not exist in this current context
body: <p>I am in a c# class and i am having to write this code but i dont understand c# that well and I am having this problem with my code. I have 6 Errors in the code they are all the same error saying that  </p>
  
  <p>"the name "textbox1MESSAGE" does not exist in this current context"</p>
  
  <p>and if anyone could help me that would be great.
  maybe I might learn something as well if someone helps me the teacher does not teach the class. they hand me a book and says read it and understand it and do the class work and take the test. and you will pass the class. I have never had any experience in any computer languages.</p>
  
  <p>here is my code.
   what is wrong with it?
  and what did I do wrong?</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 WindowsFormsApplication2
  {
   public partial class Form1 : Form
  {
      public Form1()
      {
          InitializeComponent();
      }
  
      private void textBox1_TextChanged(object sender, EventArgs e)
      {
  
      }
  
      private void Do_Click(object sender, EventArgs e)
      {
  
          int lcv = 1;
          string szmessage = "";
  
          szmessage += "the Do Loop - ";
          do
          {
              szmessage += lcv.ToString();
              textBox1MESSAGE.Text = szmessage;
              textBox1MESSAGE.Refresh();
              for (decimal i = 0m; i &lt; 1000000m; i++) ;
              lcv++;
          }
          while (lcv &lt; 11);
  
  
      }
  
      private void While_Click(object sender, EventArgs e)
      {
          int lcv = 10;
          string szmessage = "";
  
          szmessage += "The While Loop - ";
  
          while (lcv &gt; 0)
          {
              szmessage += lcv.ToString();
              textBox1MESSAGE.Text = szmessage;
              textBox1MESSAGE.Refresh();
              for (decimal i = 0m; i &lt; 1000000; i++) ;
              lcv--;
          }
      }
  
      private void FOR_Click(object sender, EventArgs e)
      {
          int lcv = 1;
          string szMessage = "";
  
          szMessage += "The For Loop - ";
  
          for (lcv = 1; lcv &lt; 20; lcv += 2)
          {
              szMessage += lcv.ToString();
              textBox1MESSAGE.Text = szMessage;
              textBox1MESSAGE.Refresh();
              for (Decimal i = 0m; i &lt; 1000000m; i++) ;
  
  
               }
            }
          }
     }
  </code></pre>