static public void Write()
{
CoursesFile.Write();
Users_SubjectsFile.WriteData();
Subjects_UsersFile.WriteSubjects();
UsersFile.WriteinFile();
}
static void Read()
{
if (data != null)
{
return;
}
data = new ArrayList <Student>();
if (!File.Exists("User.txt"))
{
return;
}
FileStream fs = new FileStream("User.txt", FileMode.Open);
StreamReader sr = new StreamReader(fs);
string[] Records, Fields;
Records = sr.ReadToEnd().Split('#');
sr.Close();
for (int i = 0; i < Records.Length; i++)
{
Fields = Records[i].Split('@');
if (Fields.Length == 1)
{
continue;
}
data.Append(new Student()
{
ID = int.Parse(Fields[0]),
Name = Fields[1],
Password = Fields[2],
AcademicYear = Fields[3],
RegisteredCourses = Users_SubjectsFile.GetSubjects(int.Parse(Fields[0])),
});
}
sr.Close();
}
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);
}
static public void AddStudent(Student s)
{
Data.Append(s);
Users_SubjectsFile.RegisterStudent(s);
}