Hello Svein,
Thank you for contacting Telerik support.
I was able to reproduce the described behavior.You can work around this by subscribing to the nested
TextBoxElement ValueChangind event:
This is an issue of RadDateTimePicker and I have logged it to our Public Issue Tracker under ID 10696 . To vote for it and subscribe for its status updates, follow this link:
http://www.telerik.com/support/pits.aspx#/public/winforms/10696.
Please excuse us for the caused inconvenience.
Your Telerik points have been updated.
All the best,
Peter
the Telerik team