What date format does a RadDatePicker control support? I mean, both at the time of selecting of date from control and as well as at the time of fetching from database, whether it shows the date according to server regional settings or client's regional settings?
By default, the RadDatePicker, RadTimePicker, and RadDateTimePicker controls use the system locale settings to determine how they format date and time values. You can override any of the default formats using the DateFormat and DisplayDateFormat properties of the embedded RadDateInput, RadCalendar, and RadTimeView controls. Please take a look into this help documentation for further information.