RadDateTimePicker ControlTemplate: PopupPlacementTarget in RadDropDownButton is not respected when FlowDirection of RadDateTimePicker is RTL. PopupWrapper issue.
RadDateTimePicker cannot parse datetime string when Windows date format is set to "Chinese (Traditional, Taiwan)".
For example if you have 12:00 selected and input 15:03 in the WatermarkTextbox- 12:00 item of the Clock is still selected
When StartTime = EndTime all hours are visable (12 am - 11pm) Workaround: Select EndTime in one hour interval from StartTime (10:00 - >10:01). In this situation only 10:00 will be visible
When FlowDirection is RTL, navigating in Calendar and Clock is inverted- pressing left arrow moves the selection to the right and vice versa.
The current workaround is to make sure that both the day and month include leading zeros in the ShortDatePattern: this.DatePicker.Culture.DateTimeFormat.ShortDatePattern = "yyyy.MM.dd";