public void SaveCourseWithPreRequisite()
{
CourseRepository repo = new CourseRepository();
string[] courseAlongWithPre = new string[2];
foreach (string course in this.allCourses)
{
courseAlongWithPre = course.Split(':');
if (!withoutPreRequisiteCourses.Any(str => str.Contains(courseAlongWithPre[0])))
repo.AddCoursewithPreRequiste(courseAlongWithPre[0].Trim(), courseAlongWithPre[1].Trim());
else
repo.AddCoursewithPreRequiste(courseAlongWithPre[0], string.Empty);
}
}
