public StudentEnumerator(Student input_s)
{
IComparer comparer = new Credit_Exam_Comparer();
input_s.exam_list.Sort();
credit_intersect_exam = new ArrayList();
for (int i = 0; i < input_s.credit_list.Count; i++)
{
//Console.WriteLine("In the loop.");
//if (input_s.exam_list.BinarySearch(((Credit)input_s.credit_list[i]).Credit_Name, comparer) > 0)
if (input_s.exam_list.BinarySearch((Credit)input_s.credit_list[i], comparer) == 0 ||
input_s.exam_list.BinarySearch((Credit)input_s.credit_list[i], comparer) > 0)
{
credit_intersect_exam.Add(((Credit)input_s.credit_list[i]).Credit_Name);
//Console.WriteLine("Added Credit to StudentEnumerator.");
}
}
this.current = -1;
}
/* Iterates through passed Credits which have corresponding
* Exam passed with grade > 2
*/
public IEnumerable <Credit> Passed_Credit_Iterator()
{
IComparer comparer = new Credit_Exam_Comparer();
exam_list.Sort();
// will return Credit objects only if both credit and exam lists contain smth
if (credit_list != null && exam_list != null)
{
for (int i = 0; i < credit_list.Count; i++)
{
int found_exam_index = exam_list.BinarySearch((Credit)credit_list[i], comparer);
if (found_exam_index > 0)
{
Exam found_exam = (Exam)exam_list[found_exam_index];
if (((Credit)credit_list[i]).Credit_Passed &&
found_exam.Grade > 2)
{
yield return((Credit)credit_list[i]);
}
}
}
}
}
/* Iterates through passed Credits which have corresponding
* Exam passed with grade > 2
*/
public IEnumerable <Credit> Passed_Credit_Iterator()
{
IComparer comparer = new Credit_Exam_Comparer();
exam_list.Sort();
// will return Credit objects only if both credit and exam lists contain smth
if (credit_list != null && exam_list != null)
{
for (int i = 0; i < credit_list.Count; i++)
{
int found_exam_index = exam_list.FindIndex(x => x.Exam_Name == credit_list[i].Credit_Name); // new version
//int found_exam_index = exam_list.BinarySearch((Credit)credit_list[i], comparer); <- old version
if (found_exam_index != -1)
{
Exam found_exam = exam_list[found_exam_index];
if (credit_list[i].Credit_Passed && found_exam.Grade > 2)
{
yield return(credit_list[i]);
}
}
}
}
}