private void RemoveCourse(object parameter)
{
if (SelectedCourse != null && (MessageBox.Show("Are you sure you want to delete " + SelectedCourse.CourseName, "Training Database", MessageBoxButton.YesNo, MessageBoxImage.Question) == MessageBoxResult.Yes))
{
IEnumerable <int> idlist = CourseList.Select(t => t.ID);
db.Courses.Remove(SelectedCourse);
//SaveDataChanges(null);
CourseList = db.Courses.Local.Where(c => idlist.Contains(c.ID)).OrderBy(c => c.CourseName).ToList();
SelectedCourse = CourseList.FirstOrDefault();
NotifyPropertyChanged("Changed");
}
}