<toolkit:DatePicker x:Name="PickerDate"
                                Header="{Binding Source={StaticResource LocalizedStrings}, Path=LocalizedResources.HeaderWhen}"
                                Value="12/03/2014 20:23"
                                ValueStringFormat="{}{0:dd/MM/yyyy HH:mm}"
                                PickerPageUri="/EnteAutonomoVolturno;component/Views/DateTimePickerPage.xaml"/>