title: how to make input disabled in react using bootstrap?
body: <p>I have 2 inputs on the form. I am using React.js and Twitter Bootstrap.</p>
  
  <p>The intended behavior is:</p>
  
  <p>When an input is typed in on either of the form input fields, another input field should not accept any input (or be <code>disabled</code>).</p>
  
  <p>I am using FormControl from Bootstrap.</p>
  
  <p>How should I achieve this in this React.js/Bootstrap setting?</p>