title: Changing content on ASP.NET using AJAX
body: <p>I have this asp.net code in my page :</p>
  
  <pre><code>&lt;div id="prx"&gt;ABC&lt;/div&gt;
  </code></pre>
  
  <p>And I want to change the value "ABC" to something when for example the user type a value in TextBox.</p>
  
  <p>How can I do that using <code>Ajax</code> ?</p>
  
  <p>Thanks</p>