public void DetailInfor(int id)
{
StudentInfor ResultInfor = null;
Grade ResultGrades = null;
ResultInfor = StudentInfors.SingleOrDefault(x => x.StudentID == id);
{
if (ResultInfor == null)
{
Console.WriteLine("Error!!! No matching student found");
}
else
{
ResultInfor.ShowInfor();
ResultGrades = Grades.SingleOrDefault(x => x.GradeID == id);
{
if (ResultGrades == null)
{
Console.WriteLine("Error!!! No transcript matching student ID found");
}
else
{
ResultGrades.ShowGrades();
}
}
}
}
}
static void Main(string[] args)
{
StudentInfor cc = new StudentInfor(7, "Vo Van Thin", "*****@*****.**", "GCD0702");
Students vvt = new Students();
vvt.AddInfor(7, "Vo Van Thin", "*****@*****.**", "GCD0702");
vvt.AddGrades(7, 5.6, 5, 6, 7, 6.8, 4);
vvt.DetailInfor(7);
Console.ReadKey();
Grade thin = new Grade(7);
thin.AddMath(5.4);
thin.AddLiterature(6);
thin.AddEnglish(7);
thin.AddBiology(2.5);
thin.AddHistory(10);
thin.AddGeography(5);
thin.ShowGrades();
thin.Average(4);
Console.ReadKey();
}