Thanks for writing.
You cannot directly set orientation support for a particular control as the orientation support is only defined on a single page level. Since the Date-TimePicker controls just open a popup on the same page the control resides, they inherit the orientation support of that particular page.
I hope this helps.
TRY TELERIK'S NEWEST PRODUCT - EQATEC APPLICATION ANALYTICS for WINDOWS PHONE 7.
Learn what features your users use (or don't use) in your application. Know your audience. Target it better. Develop wisely.
Sign up for Free application insights >>