public static void Main()
{
// Reverse_OrderBy_ThenBy_OrderByDescending_ThenByDescending ai class er moddhe ase Student1 class
IEnumerable <Student1> students = Student1.GetAllStudents();
do
{
Console.WriteLine("Please enter Page Number - 1, 2 or 3");
int pageNumber = 0;
if (int.TryParse(Console.ReadLine(), out pageNumber))
{
if (pageNumber >= 1 && pageNumber <= 3)
{
int pageSize = 2;
IEnumerable <Student1> result = students.Skip((pageNumber - 1) * pageSize).Take(pageSize);
Console.WriteLine();
Console.WriteLine("Displaying Page " + pageNumber);
foreach (Student1 student in result)
{
Console.WriteLine(student.StudentID + "\t" + student.Name + "\t" + student.TotalMarks);
}
Console.WriteLine();
}
else
{
Console.WriteLine("Page number must be an integer between 1 and 3");
}
}
else
{
Console.WriteLine("Page number must be an integer between 1 and 4");
}
} while (1 == 1);
}
public static void Main(string[] args)
{
//List<Student1> result = Student1.GetAllStudents().OrderBy(s => s.Name).ToList();
//IOrderedEnumerable<Student1> result = Student1.GetAllStudents().OrderBy(s => s.Name);
IEnumerable <Student1> result = Student1.GetAllStudents().OrderBy(s => s.Name);
foreach (Student1 student in result)
{
Console.WriteLine(student.Name);
}
Console.WriteLine("=========================1");
IEnumerable <Student1> result1 = from student in Student1.GetAllStudents() orderby student.Name
select student;
foreach (Student1 student in result1)
{
Console.WriteLine(student.Name);
}
Console.WriteLine("=========================2");
IEnumerable <Student1> result2 = Student1.GetAllStudents().OrderByDescending(s => s.Name);
foreach (Student1 student in result2)
{
Console.WriteLine(student.Name);
}
Console.WriteLine("=========================3");
IEnumerable <Student1> result3 = from student in Student1.GetAllStudents() orderby student.Name descending
select student;
foreach (Student1 student in result3)
{
Console.WriteLine(student.Name);
}
Console.WriteLine("=========================4");
IEnumerable <Student1> result4 = Student1.GetAllStudents().OrderBy(s => s.TotalMarks).ThenBy(s => s.Name)
.ThenByDescending(s => s.StudentID);
foreach (Student1 student in result4)
{
Console.WriteLine(student.TotalMarks + "\t" + student.Name + "\t" + student.StudentID);
}
Console.WriteLine("=========================5");
IEnumerable <Student1> result5 = from student in Student1.GetAllStudents()
orderby student.TotalMarks, student.Name, student.StudentID descending
select student;
foreach (Student1 student in result5)
{
Console.WriteLine(student.TotalMarks + "\t" + student.Name + "\t" + student.StudentID);
}
Console.WriteLine("=========================6");
IEnumerable <Student1> students = Student1.GetAllStudents();
Console.WriteLine("Before calling Reverse");
foreach (Student1 s in students)
{
Console.WriteLine(s.StudentID + "\t" + s.Name + "\t" + s.TotalMarks);
}
Console.WriteLine();
IEnumerable <Student1> result6 = students.Reverse();
Console.WriteLine("After calling Reverse");
foreach (Student1 s in result)
{
Console.WriteLine(s.StudentID + "\t" + s.Name + "\t" + s.TotalMarks);
}
}
