コード例 #1
0
 public void Add(Student student)
 {
     studentsList.AddFirst(student);
 }
コード例 #2
0
 public Student GetElement(int index)
 {
     Student[] studentsListTab = new Student[studentsList.Count];
     studentsList.CopyTo(studentsListTab, 0);
     return(studentsListTab[index - 1]);
 }
コード例 #3
0
        public void Sort(int sortDirection, int sortField)
        {
            int count = studentsList.Count;

            Student[] studentsListTab = new Student[count];
            studentsList.CopyTo(studentsListTab, 0);
            Student[] studentsListFinish = new Student[count];

            if (sortField == 1)
            {
                if (studentsList.Count > 0)
                {
                    string lastWord         = studentsListTab[0].FirstName;
                    int    indexLastElement = 0;
                    for (int j = count - 1; j >= 0; j--)
                    {
                        for (int i = 1; i < count - 1; i++)
                        {
                            int compare = 0;
                            compare = String.Compare(lastWord, studentsListTab[i].FirstName);
                            if (compare > 0)
                            {
                                lastWord         = studentsListTab[i].FirstName;
                                indexLastElement = i;
                            }
                        }
                        string firstName     = " ";
                        string lastName      = " ";
                        string studentNumber = " ";
                        float  averageScore  = 0;
                        firstName     = studentsListTab[indexLastElement].FirstName;
                        lastName      = studentsListTab[indexLastElement].LastName;
                        studentNumber = studentsListTab[indexLastElement].StudentNumber;
                        averageScore  = studentsListTab[indexLastElement].AverageScore;
                        Student studentCopy = new Student(firstName, lastName, studentNumber, averageScore);

                        Student removeByIndex = studentsListTab[indexLastElement];
                        studentsList.Remove(removeByIndex);

                        studentsListFinish[j] = studentCopy;
                    }
                }
                if (sortDirection == 1)
                {
                    for (int i = 0; i < count; i++)
                    {
                        Student student = studentsListFinish[i];
                        studentsList.AddLast(student);
                    }
                }
                if (sortDirection == 0)
                {
                    for (int i = 0; i < count; i++)
                    {
                        Student student = studentsListFinish[i];
                        studentsList.AddFirst(student);
                    }
                }
            }

            if (sortField == 2)
            {
                if (studentsList.Count > 0)
                {
                    string lastWord         = studentsListTab[0].LastName;
                    int    indexLastElement = 0;
                    for (int j = count - 1; j >= 0; j--)
                    {
                        for (int i = 1; i < count - 1; i++)
                        {
                            int compare = 0;
                            compare = String.Compare(lastWord, studentsListTab[i].LastName);
                            if (compare > 0)
                            {
                                lastWord         = studentsListTab[i].LastName;
                                indexLastElement = i;
                            }
                        }
                        string firstName     = " ";
                        string lastName      = " ";
                        string studentNumber = " ";
                        float  averageScore  = 0;
                        firstName     = studentsListTab[indexLastElement].FirstName;
                        lastName      = studentsListTab[indexLastElement].LastName;
                        studentNumber = studentsListTab[indexLastElement].StudentNumber;
                        averageScore  = studentsListTab[indexLastElement].AverageScore;
                        Student studentCopy = new Student(firstName, lastName, studentNumber, averageScore);

                        Student removeByIndex = studentsListTab[indexLastElement];
                        studentsList.Remove(removeByIndex);

                        studentsListFinish[j] = studentCopy;
                    }
                }
                if (sortDirection == 1)
                {
                    for (int i = 0; i < count; i++)
                    {
                        Student student = studentsListFinish[i];
                        studentsList.AddLast(student);
                    }
                }
                if (sortDirection == 0)
                {
                    for (int i = 0; i < count; i++)
                    {
                        Student student = studentsListFinish[i];
                        studentsList.AddFirst(student);
                    }
                }
            }

            if (sortField == 3)
            {
                if (studentsList.Count > 0)
                {
                    string lastWord         = studentsListTab[0].StudentNumber;
                    int    indexLastElement = 0;
                    for (int j = count - 1; j >= 0; j--)
                    {
                        for (int i = 1; i < count - 1; i++)
                        {
                            int compare = 0;
                            compare = String.Compare(lastWord, studentsListTab[i].StudentNumber);
                            if (compare > 0)
                            {
                                lastWord         = studentsListTab[i].StudentNumber;
                                indexLastElement = i;
                            }
                        }
                        string firstName     = " ";
                        string lastName      = " ";
                        string studentNumber = " ";
                        float  averageScore  = 0;
                        firstName     = studentsListTab[indexLastElement].FirstName;
                        lastName      = studentsListTab[indexLastElement].LastName;
                        studentNumber = studentsListTab[indexLastElement].StudentNumber;
                        averageScore  = studentsListTab[indexLastElement].AverageScore;
                        Student studentCopy = new Student(firstName, lastName, studentNumber, averageScore);

                        Student removeByIndex = studentsListTab[indexLastElement];
                        studentsList.Remove(removeByIndex);

                        studentsListFinish[j] = studentCopy;
                    }
                }
                if (sortDirection == 1)
                {
                    for (int i = 0; i < count; i++)
                    {
                        Student student = studentsListFinish[i];
                        studentsList.AddLast(student);
                    }
                }
                if (sortDirection == 0)
                {
                    for (int i = 0; i < count; i++)
                    {
                        Student student = studentsListFinish[i];
                        studentsList.AddFirst(student);
                    }
                }
            }

            if (sortField == 4)
            {
                if (studentsList.Count > 0)
                {
                    float scoreMin        = studentsListTab[0].AverageScore;
                    int   indexMinElement = 0;
                    for (int j = count - 1; j >= 0; j--)
                    {
                        for (int i = 1; i < count - 1; i++)
                        {
                            if (scoreMin > studentsListTab[i].AverageScore)
                            {
                                scoreMin        = studentsListTab[i].AverageScore;
                                indexMinElement = i;
                            }
                        }

                        string firstName     = " ";
                        string lastName      = " ";
                        string studentNumber = " ";
                        float  averageScore  = 0;
                        firstName     = studentsListTab[indexMinElement].FirstName;
                        lastName      = studentsListTab[indexMinElement].LastName;
                        studentNumber = studentsListTab[indexMinElement].StudentNumber;
                        averageScore  = studentsListTab[indexMinElement].AverageScore;
                        Student studentCopy = new Student(firstName, lastName, studentNumber, averageScore);

                        Student removeByIndex = studentsListTab[indexMinElement];
                        studentsList.Remove(removeByIndex);

                        studentsListFinish[j] = studentCopy;
                    }
                }
                if (sortDirection == 1)
                {
                    for (int i = 0; i < count; i++)
                    {
                        Student student = studentsListFinish[i];
                        studentsList.AddLast(student);
                    }
                }
                if (sortDirection == 0)
                {
                    for (int i = 0; i < count; i++)
                    {
                        Student student = studentsListFinish[i];
                        studentsList.AddFirst(student);
                    }
                }
            }
        }