//Add Button (ADD course in the Database)
private void btnAddCourse_Click(object sender, RoutedEventArgs e)
{
courseservice.Addcourse(this);
//Context = new DataContext();
//Course course = new Course();
//course.Name = TxtCourseName.Text;
//course.Description = TxtCourseDescription.Text;
//course.MinDegree =float.Parse(TxtCourseMinDeg.Text);
//course.MaxDegree = float.Parse(TxtCourseMaxDeg.Text);
//Context.Course.Add(course);
//Context.SaveChanges();
}