static public void Write()
{
CoursesFile.Write();
Users_SubjectsFile.WriteData();
Subjects_UsersFile.WriteSubjects();
UsersFile.WriteinFile();
}
static public bool AddCourse(Course c)
{
foreach (Course s in Data)
{
if (s.Name == c.Name)
{
return(false);
}
}
Data.Append(c);
Subjects_UsersFile.RegisterCourse(c);
return(true);
}
static public void DeleteCourse(Course c)
{
for (int i = 0; i < Data.Count; i++)
{
if (Data[i] == c)
{
Subjects_UsersFile.DeleteCourse(c);
Users_SubjectsFile.DeleteCourse(c);
Data.DeleteAt(i);
return;
}
}
}
static public bool DeleteStudent(Student s)
{
for (int i = 0; i < Data.Count; i++)
{
if (Data[i] == s)
{
Users_SubjectsFile.DeleteStudent(s);
Subjects_UsersFile.DeleteStudent(s);
Data.DeleteAt(i);
return(true);
}
}
return(false);
}
