title: Calculate age from date in textbox in C#
body: <blockquote>
    <p><strong>Possible Duplicate:</strong><br>
    <a href="https://stackoverflow.com/questions/9/calculating-age-from-birthday">Calculating age from birthday</a>  </p>
  </blockquote>
  
  
  
  <p>How do you calculate age in years, taking input from TextBox in the format <code>dd/MM/yyyy</code>?</p>
  
  <p>e.g.</p>
  
  <blockquote>
    <p>input: txtDOB.Text    20/02/1989 (String format)<br>
    output: txtAge.Text   23</p>
  </blockquote>