private void menu4_1_PreviewMouseDown(object sender, System.Windows.Input.MouseButtonEventArgs e)
 {
     // TODO: Add event handler implementation here.
     DailyManagement.Schedule m_Schedule = new DailyManagement.Schedule();
     FrameMiddleContent.Navigate(m_Schedule);
 }
 private void Btn_Schedule_Click(object sender, RoutedEventArgs e)
 {
     DailyManagement.Schedule m_Schedule = new DailyManagement.Schedule();
     FrameMiddleContent.Navigate(m_Schedule);
 }