// LoadFromFile loads the entire school from file, given as a parameter
// returns -1 if unable to find file, in which case School is reset
public int LoadFromFile(String fileName)
{
School tempSchool;
if (!File.Exists(fileName))
{
// if the file doesn't exist return error code -1
return(-1);
}
// Open the file containing the data that you want to deserialize.
FileStream fs = new FileStream(fileName, FileMode.Open);
try
{
Console.WriteLine("Deserializing vector");
BinaryFormatter formatter = new BinaryFormatter();
tempSchool = (School)formatter.Deserialize(fs);
fs.Close();
theSubjects = tempSchool.theSubjects;
theTeachers = tempSchool.theTeachers;
theStudents = tempSchool.theStudents;
return(0);
}
catch (Exception e)
{
// we go here in the case of an exception
Console.WriteLine("Failed to deserialize. Reason: " + e.Message);
throw;
}
finally
{
fs.Close();
}
}
// setSubjects procedure allows a user to set a Student's Subjects
public void setSubjects(Subjects theSubjects)
{
studies = theSubjects;
}
// constructor allowing maximum sizes to be set for subjects, teachers and students.
public School(int maxSubjects, int maxTeachers, int maxStudents)
{
theSubjects = new Subjects(maxSubjects);
theTeachers = new Teachers(maxTeachers);
theStudents = new SchoolRecords.Students(maxStudents);
}
public Teacher(String firstName, String lastName, int anAge) : base(firstName, lastName, anAge)
{
// initialise to an empty collection of subjects
// assume that no teacher can teach more than the number of subjects a student can ytake e.g. 6
teaches = new Subjects(6);
}