private void DatePickerTextBoxPreviewKeyDown(object sender, KeyEventArgs e)
{
if (!(
(e.Key >= Key.D0 && e.Key <= Key.D9) ||
(e.Key >= Key.NumPad0 && e.Key <= Key.NumPad9) ||
e.Key == Key.Delete || e.Key == Key.Back || e.Key == Key.Tab ||
(e.KeyboardDevice.Modifiers == ModifierKeys.Control && e.Key == Key.C) ||
(e.KeyboardDevice.Modifiers == ModifierKeys.Control && e.Key == Key.V) ||
(e.KeyboardDevice.Modifiers == ModifierKeys.Control && e.Key == Key.A)
))
{
e.Handled = true;
}
else if (((e.Key >= Key.D0 && e.Key <= Key.D9) || (e.Key >= Key.NumPad0 && e.Key <= Key.NumPad9)) && datePickerTextBox.SelectedText.Equals(datePickerTextBox.Text))
{
selectCell = 1;
UpdateStartAndEnd(selectCell, ref start, ref length);
datePickerTextBox.Select(start, length);
}
}
private void CalendarSelectedDatesChanged(object sender, SelectionChangedEventArgs e)
{
_popup.IsOpen = false;
_datePickerTextBox.Text = _calendar.SelectedDate.ToString();
_datePickerTextBox.Focus();
_datePickerTextBox.Select(0, 4);
}