title: Check PasswordBox text contains char and number
body: <p>I'm creating a WPF window for insert user, I'm using <code>PasswordBox</code> for user type your password, but I have not ideas what I can put in <code>passBox.Password.Contains( )</code></p>
  
  <p>I need help for how to check this <code>PasswordBox</code> contains chars and numbers?</p>