DateTime Control issue

Posted by: mayur.purandare on 13 December 2020, 4:52 pm EST

  • Posted 13 December 2020, 4:52 pm EST

    I am using DateTime control in our application.

    Time control can be changed by using key operation (Up-down keys ↑ / ↓). whereas the date can not be changed using Up down keys.

    To maintain consistency in these two controls I want to change the Date also using Up down keys.
    Is it possible to achieve this behavior?
  • Marked as Answer

    Replied 13 December 2020, 11:21 pm EST

    Hi Mayur,

    Generally, it is not expected to use the Up/Down keys for navigating dates in a DatePicker. Therefore, you have to use the C1MaskedTextBox's (present in C1DatePicker template) PreviewKeyDown event to handle the Up/down keys.

    For example, you can increment/decrement the date by 1 day using Up/Down keys as follows:

    private void MaskedTextBox_PreviewKeyDown(object sender, KeyEventArgs e)
    if ((e.Key == Key.Up || e.Key == Key.Down) && datePicker.SelectedDate.HasValue)
    e.Handled = true;
    switch (e.Key)
    case Key.Up:

    case Key.Down:

    Just in case required, you can use arrow keys in the Calendar present in the C1DatePicker's DropDown.

    Please refer to the same from the attached sample. (see

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