public bool DeleteCourse(Course course)
{
courseList.Remove(course);
if (courseList.Contains(course))
{
return(false);
}
else
{
InputAndOutput.OutPutCourse(courseList);
return(true);
}
}
public bool AddCourse(Course course)
{
courseList.Add(course);
if (courseList.Contains(course))
{
InputAndOutput.OutPutCourse(courseList);
return(true);
}
else
{
return(false);
}
}
public bool ChangeCourseInfo(Course course)
{
Course c = courseList.Find(x => x.Coursenum == course.Coursenum);
courseList.Remove(c);
courseList.Add(course);
if (courseList.Contains(course))
{
InputAndOutput.OutPutCourse(courseList);
return(true);
}
else
{
return(false);
}
}