title: Telerik: raddatetimepicker SelectedDateChanged event not work
body: <p>Hi I use the element  (similar datepicker).
  When I change the date using the specific button the event SelectedDateChanged is raised. (correct)
  When I change the date writing directly in textbox the event SelectedDateChanged is not raised. (incorrect)</p>
  
  <p>Do you know this problem? and Do you know the solution?</p>
  
  <p>Thanks
  (sorry my bad english)</p>