title: how to control or change all the text to upper case
body: <p>I'm developing a few forms for my company to use. I consult and insert data into the database, but for standard issues I want to transform the text I enter to uppercase, How I do that?</p>
  
  <p>Example of one of my forms:</p>
  
  <p>I want the text fields I enter in automatically transformed to uppercase, or the data that I enter into my database already transformed to uppercase (in the case that the user doesn't enter it that way).</p>
  
  <hr>
  
  <p>EDIT:</p>
  
  <p>I try </p>
  
  <pre><code>$("tbCiudad").change(function() {
      $(this).val($(this).val().toUpperCase());
  });
  </code></pre>
  
  <p>or </p>
  
  <pre><code>$("tbCiudad").keyup(function() {
      $(this).val($(this).val().toUpperCase());
  });
  </code></pre>
  
  <p>and nothing happens to that field. What am I doing wrong?</p>