private void btnCreateGroups_Click(object sender, EventArgs e)
{
if (rbdGroupsRandom.Checked)
{
Commons.ShuffleList(listGroups);
}
else if (rdbGroupsBestGradesTogether.Checked)
{
}
else if (rdbGradesBalanced.Checked)
{
}
// create groups into groups array
string[,] groups = new string[nStudentsPerGroup, nGroups];
int stud = 0;
for (int i = 0; i < nStudentsPerGroup; i++)
{
for (int j = 0; j < nGroups; j++)
{
Student s = listGroups[stud];
groups[i, j] = s.LastName + " " + s.FirstName;
stud++;
if (stud == listGroups.Count)
{
break;
}
}
if (stud == listGroups.Count)
{
break;
}
}
// make the string to show groups
string groupsString = "";
for (int j = 0; j < nGroups; j++)
{
groupsString += "Gruppo " + (j + 1).ToString() + "\r\n";
int nStud = 1;
for (int i = 0; i < nStudentsPerGroup; i++)
{
if (groups[i, j] != null && groups[i, j] != " " && groups[i, j] != " ")
{
groupsString += $"{nStud.ToString("00")} - {groups[i, j]} \r\n";
nStud++;
}
}
groupsString += "\r\n";
}
groupsString += "\r\n";
txtGroups.Text = groupsString;
}
private void btnCreateGroups_Click(object sender, EventArgs e)
{
DataTable tb = db.GetGradesWeightedAveragesOfClass(schoolClass, schoolGrade.IdGradeType, schoolSubject.IdSchoolSubject, (DateTime)schoolPeriod.DateStart, (DateTime)schoolPeriod.DateFinish);
List<StudentAndGrade> listStudents = new List<StudentAndGrade>();
foreach (DataRow row in tb.Rows)
listStudents.Add(new StudentAndGrade(row.ItemArray[2].ToString(), row.ItemArray[3].ToString(), (double)row.ItemArray[4]));
listStudents.Sort((firstGrade, secondGrade) => firstGrade.grade.CompareTo(secondGrade.grade));
listStudents.Reverse(); //Lista studenti in ordine decrescente in base al voto
List<Student> listTempStudents;
if (rbdGroupsRandom.Checked)
{
Commons.ShuffleList(listGroups);
}
else if (rdbGroupsBestGradesTogether.Checked)
{
listTempStudents = new List<Student>();
for (int i = 0; i < listStudents.Count; i++)
{
for (int j = 0; j < listGroups.Count; j++)
{
if (listStudents[i].lastName == listGroups[j].LastName && listStudents[i].firstName == listGroups[j].FirstName)
{
listTempStudents.Add(listGroups[j]);
}
}
}
listGroups = listTempStudents;
}
else if (rdbGradesBalanced.Checked)
{
int lengthLista = listStudents.Count;
listTempStudents = new List<Student>();
for (int i = 0, g = 0; g < lengthLista ; g++)
{
for (int j = 0; j < listGroups.Count; j++)
{
if (listStudents[i].lastName == listGroups[j].LastName && listStudents[i].firstName == listGroups[j].FirstName)
{
listTempStudents.Add(listGroups[j]);
}
}
listStudents.RemoveAt(i);
if (i == 0)
i = listStudents.Count - 1;
else
i = 0;
}
listGroups = listTempStudents;
}
// create groups into groups array
string[,] groups = new string[nGroups, nStudentsPerGroup];
int stud = 0;
for (int i = 0; i < nGroups; i++)
{
for (int j = 0; j < nStudentsPerGroup; j++)
{
Student s = listGroups[stud];
groups[i, j] = s.LastName + " " + s.FirstName;
stud++;
if (stud == listGroups.Count)
break;
}
if (stud == listGroups.Count)
break;
}
// make the string to show groups
string groupsString = "";
for (int j = 0; j < nGroups; j++)
{
groupsString += "Gruppo " + (j + 1).ToString() + "\r\n";
int nStud = 1;
for (int i = 0; i < nStudentsPerGroup; i++)
{
if (groups[j, i] != null && groups[j, i] != " " && groups[j, i] != " ")
{
groupsString += $"{nStud.ToString("00")} - {groups[j, i]} \r\n";
nStud++;
}
}
groupsString += "\r\n";
}
groupsString += "\r\n";
txtGroups.Text = groupsString;
}