DateTimeEditors for WPF includes the C1DatePicker control, a simple control which provides a date picker that, when clicked at run time, allows you to choose a date from a drop-down calendar. When you add the C1DatePicker control to a XAML window, it exists as a completely functional date picker. By default, the control's interface looks similar to the following image:

The C1DatePicker control consists of the following elements:        

• Display Box
  The display box presents the selected date. This can be set using the C1DatePicker.SelectedDate property. Users can also input numeric date into the display box at run time. When you enter a numeric value, it will automatically be converted to a date. The control can use the SelectedDate property display dates in three edit modes: Long, Short (default), and Custom.
• Drop-Down Arrow
  Clicking the drop-down arrow of the C1DatePicker control at run time allows you to select a date from a drop-down calendar that appears.