title: Opening a Form2 by clicking a textbox?
body: <p>How do I make so when I click on a textbox, make form2 open?</p>
  
  <p>I understand is something like </p>
  
  <pre><code>Form2 f2 = new form2();
  f2.show();
  </code></pre>
  
  <p>but its not a button, it's a textbox.</p>
  
  <p>Im currently expressing some values in the textbox, and I want to click the textbox and form 2 to appear, which haves 4 option to change the value into.</p>
  
  <pre><code>listBox2.Items.Add(" 1       " + seatArray[0].PrintInfo);
  listBox2.Items.Add(" 2       " + seatArray[1].PrintInfo);
  listBox2.Items.Add(" 3       " + seatArray[2].PrintInfo);
  listBox2.Items.Add(" 4       " + seatArray[3].PrintInfo);
  </code></pre>
  
  <hr>
  
  <pre><code>private void listBox2_SelectedIndexChanged(object sender, EventArgs e)
          {
  
  
              string test = listBox2.SelectedItem.ToString().Substring(0,2);
              int num = int.Parse(test);
              textBox1.Text = test;//Row
              textBox2.Text = seatArray[num-1].A.ToString();
              textBox7.Text = seatArray[num-1].B.ToString();
              textBox5.Text = seatArray[num-1].C.ToString();
              textBox3.Text = seatArray[num-1].D.ToString();
              textBox6.Text = seatArray[num-1].E.ToString();
              textBox4.Text = seatArray[num-1].F.ToString();
  
          }
  </code></pre>
  
  <hr>
  
  <pre><code> private void textBox2_TextChanged(object sender, EventArgs e)
      {
          Form2 f = new Form2();
            f.Show(); 
  
  
      }
  </code></pre>
  
  <p>when I click and item on my listbox, it summons the form 2, but I need for it to open when I click the textbox itself.</p>