title: MessageBox.Show("First Name,{0}", textBox1.Text);
body: <p>I would like for the input from textbox1.text to be displayed in the place holder {0}
  so that if textbox1.text = "Randy" I would like a messagebox to popup and say Firstname,Randy</p>
  
  <pre><code>MessageBox.Show("First Name,{0}", textBox1.Text);
  </code></pre>
  
  <p>What happens currently is a messagebox pops up and says First Name,{0}</p>