public static IEnumerable<Student> FirstNameBeforeLast(Student[] inputArray)
{
IEnumerable<Student> result =
from student in inputArray
where student.FirstName.CompareTo(student.LastName) < 0
select student;
return result;
}
public static IEnumerable<Student> OrderedListOfStudents(Student[] inputArray)
{
IEnumerable<Student> result =
from student in inputArray
orderby student.FirstName, student.LastName
select student;
return result;
}
public static IEnumerable<Student> AgeBetween18and24(Student[] inputArray)
{
IEnumerable<Student> result =
from student in inputArray
where student.Age >= 18 && student.Age <= 24
select student;
return result;
}
public static IEnumerable<Student> OrderedListOfStudentsLinq(Student[] inputArray)
{
IEnumerable<Student> result = inputArray.OrderBy(student => student.FirstName)
.ThenBy(student => student.LastName);
return result;
}
