FarsiLibrary.WPF.Controls.FXDatePicker.OnNullValueTextChanged C# (CSharp) Метод

        private static void OnNullValueTextChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            FXDatePicker datepicker = (FXDatePicker)d;

            if (!datepicker.SelectedDateTime.HasValue)
                datepicker.DoFormat(null);
        }