public UCCourses(TutorsViewModel tvm)
        {
            InitializeComponent();

            this.tvm           = tvm;
            ucCourseDetails    = new UCCourseDetails(tvm);
            ucNewCourseDetails = new UCNewCourseDetails(tvm);
        }
        private void btnNewTutor_Click(object sender, RoutedEventArgs e)
        {
            splDetails.Children.Clear();
            UCNewCourseDetails ucNewCourseDetails = new UCNewCourseDetails(tvm);

            splDetails.Children.Add(ucNewCourseDetails);

            if (tvm.SlideInEnabled)
            {
                Storyboard sb = this.FindResource("SlideIn") as Storyboard;
                Storyboard.SetTarget(sb, this.ucNewCourseDetails);
                sb.Begin();

                tvm.SlideInEnabled = false;
            }
        }