public int Compare(Student student1, Student student2)
{
if (student1.Grade.CompareTo(student2.Grade) != 0)
{
return(student1.Grade.CompareTo(student2.Grade));
}
else
{
StudentCompareByName compareByName = new StudentCompareByName();
return(compareByName.Compare(student1, student2)); //if grades are the same, then sort by name (first name, last name, then ID)
}
}
protected void sortType_SelectedIndexChanged(object sender, EventArgs e)
{
List <Student> courseList = new List <Student>();
courseList = (List <Student>)Session["courseListSession"];
if (sortType.SelectedItem.Value == "0")
{
//ID was selected for sorting
courseList.Sort();
foreach (Student st in courseList)
{
TableRow row = new TableRow();
TableCell cell = new TableCell();
cell.Text = st.ID.ToString();
row.Cells.Add(cell);
cell = new TableCell();
cell.Text = st.Name.ToString();
row.Cells.Add(cell);
cell = new TableCell();
cell.Text = st.Grade.ToString();
row.Cells.Add(cell);
tableSort.Rows.Add(row);
}
}
if (sortType.SelectedItem.Value == "1")
{
//Name was selected for sorting
StudentCompareByName myComp = new StudentCompareByName();
courseList.Sort(myComp);
foreach (Student st in courseList)
{
TableRow row = new TableRow();
TableCell cell = new TableCell();
cell.Text = st.ID.ToString();
row.Cells.Add(cell);
cell = new TableCell();
cell.Text = st.Name.ToString();
row.Cells.Add(cell);
cell = new TableCell();
cell.Text = st.Grade.ToString();
row.Cells.Add(cell);
tableSort.Rows.Add(row);
}
}
if (sortType.SelectedItem.Value == "2")
{
//Grade was selected for sorting
StudentComparerByGrade myComp = new StudentComparerByGrade();
courseList.Sort(myComp);
foreach (Student st in courseList)
{
TableRow row = new TableRow();
TableCell cell = new TableCell();
cell.Text = st.ID.ToString();
row.Cells.Add(cell);
cell = new TableCell();
cell.Text = st.Name.ToString();
row.Cells.Add(cell);
cell = new TableCell();
cell.Text = st.Grade.ToString();
row.Cells.Add(cell);
tableSort.Rows.Add(row);
}
}
}
protected void addBtn_Click(object sender, EventArgs e)
{
//creating a new student
string studentNumber = studentNumberTxt.Text;
string studentName = studentNameTxt.Text;
AlgonquinCollege.Registration.Entities.Student newStudent = new AlgonquinCollege.Registration.Entities.Student(studentNumber, studentName);
//create a new course
string index = (string)Session["selectedCourse"];
string selectedCourseName = DropDownList1.SelectedValue.ToString();
Course newCourse = new Course(index, selectedCourseName);
//creating a list of academic records
List <AcademicRecord> academicRecordList = new List <AcademicRecord>();
AcademicRecord newAcademicRecord = new AcademicRecord(newCourse, newStudent);
newAcademicRecord.Grade = int.Parse(gradeTxt.Text);
//adding course to list and session
if (Session["academicRecordListSession"] == null)
{
academicRecordList.Add(newAcademicRecord);
Session["academicRecordListSession"] = academicRecordList;
}
else
{
academicRecordList = (List <AcademicRecord>)Session["academicRecordListSession"];
academicRecordList.Add(newAcademicRecord);
Session["academicRecordListSession"] = academicRecordList;
}
//sorting list by name
StudentCompareByName myComp = new StudentCompareByName();
academicRecordList.Sort(myComp);
//displaying table
foreach (AcademicRecord item in academicRecordList)
{
if (item.Course.CourseName == DropDownList1.Text)
{
TableRow row = new TableRow();
TableCell cell = new TableCell();
cell.Text = item.Student.Id.ToString();
row.Cells.Add(cell);
cell = new TableCell();
cell.Text = item.Student.Name;
row.Cells.Add(cell);
cell = new TableCell();
cell.Text = item.Grade.ToString();
row.Cells.Add(cell);
tableSort.Rows.Add(row);
}
}
studentNumberTxt.Text = "";
studentNameTxt.Text = "";
gradeTxt.Text = "";
}
