title: Binding XAML to custom entry in xamarin.form.behavior
body: <p>I have a custom entry in my code, but I wish to use the <code>xamarin.form.behavior</code> property.</p>
  
  <p><a href="http://developer.xamarin.com/guides/cross-platform/xamarin-forms/working-with/behaviors/" rel="nofollow">http://developer.xamarin.com/guides/cross-platform/xamarin-forms/working-with/behaviors/</a></p>
  
  <p>My final target is like, type <code>Behavior = NameValidation</code>or <code>Behavior = IdentityValidation</code> in XAML, then it will go find the different validation which already inherited from <code>Behavior</code> class.</p>
  
  <p>How should I explore hidden property inside the custom entry and achieve it?</p>