private void btnFind_Click(object sender, EventArgs e)
{
listBox1.Items.Clear();
SaveStudents.Clear();
List <Student> FindOfStudents = new List <Student>();
FindOfStudents.AddRange(students);
if (checkBox1.Checked == true && textBox1.Text != "")
{
IEnumerable <Student> evens = from i in FindOfStudents
where i.FIO.Equals(textBox1.Text) == true
select i;
if (evens.ToList().Count != 0)
{
FindOfStudents = new List <Student>(evens);
}
}
if (checkBox2.Checked == true && textBox2.Text != "")
{
IEnumerable <Student> evens = from i in FindOfStudents
where i.NumBook.Equals(UInt64.Parse(textBox2.Text)) == true
select i;
if (evens.ToList().Count != 0)
{
FindOfStudents = new List <Student>(evens);
}
}
if (checkBox4.Checked == true)
{
IEnumerable <Student> evens = from i in FindOfStudents
where i.Curs.Equals(ushort.Parse(numericUpDown2.Value.ToString())) == true
select i;
if (evens.ToList().Count != 0)
{
FindOfStudents = new List <Student>(evens);
}
;
}
if (checkBox3.Checked == true)
{
IEnumerable <Student> evens = from i in FindOfStudents
where i.CodeG.Equals(cmbBoxCodeG.Text) == true
select i;
if (evens.ToList().Count != 0)
{
FindOfStudents = new List <Student>(evens);
}
}
if (checkBox6.Checked == true)
{
IEnumerable <Student> evens = from i in FindOfStudents
where i.Discipline.Equals(cmbBoxDisciplina.Text) == true
select i;
if (evens.ToList().Count != 0)
{
FindOfStudents = new List <Student>(evens);
}
}
if (checkBox5.Checked == true)
{
IEnumerable <Student> evens = from i in FindOfStudents
where i.Rating.Equals(UInt16.Parse(numericUpDown3.Value.ToString())) == true
select i;
Student st = FindOfStudents.First();
if (evens.ToList().Count != 0)
{
FindOfStudents = new List <Student>(evens);
}
}
foreach (Student st in FindOfStudents)
{
listBox1.Items.Add(st.FIO + " " + st.Curs + " " + st.NumBook + " " + st.CodeG + " " + st.Discipline + " " + st.Rating);
}
SaveStudents.AddRange(FindOfStudents);
//int[] numbers = { 1, 2, 3, 4, 10, 34, 55, 66, 77, 88 };
//IEnumerable<int> evens1 = from i in numbers
// where i % 2 == 0
// select i;
//foreach (int i in evens1)
// MessageBox.Show(i.ToString());
}
private void btnARG_Click(object sender, EventArgs e)
{
listBox1.Items.Clear();
SaveStudents.Clear();
List <Student> FindOfStudents = new List <Student>();
FindOfStudents.AddRange(students);
if (checkBox1.Checked == true && textBox1.Text != "")
{
IEnumerable <Student> evens = from i in FindOfStudents
where i.FIO.Equals(textBox1.Text) == true
select i;
if (evens.ToList().Count != 0)
{
FindOfStudents = new List <Student>(evens);
}
}
if (checkBox2.Checked == true && textBox2.Text != "")
{
IEnumerable <Student> evens = from i in FindOfStudents
where i.NumBook.Equals(UInt64.Parse(textBox2.Text)) == true
select i;
if (evens.ToList().Count != 0)
{
FindOfStudents = new List <Student>(evens);
}
}
if (checkBox4.Checked == true)
{
IEnumerable <Student> evens = from i in FindOfStudents
where i.Curs.Equals(ushort.Parse(numericUpDown2.Value.ToString())) == true
select i;
if (evens.ToList().Count != 0)
{
FindOfStudents = new List <Student>(evens);
}
;
}
if (checkBox3.Checked == true)
{
IEnumerable <Student> evens = from i in FindOfStudents
where i.CodeG.Equals(cmbBoxCodeG.Text) == true
select i;
if (evens.ToList().Count != 0)
{
FindOfStudents = new List <Student>(evens);
}
}
if (checkBox6.Checked == true)
{
IEnumerable <Student> evens = from i in FindOfStudents
where i.Discipline.Equals(cmbBoxDisciplina.Text) == true
select i;
if (evens.ToList().Count != 0)
{
FindOfStudents = new List <Student>(evens);
}
}
if (checkBox5.Checked == true)
{
IEnumerable <Student> evens = from i in FindOfStudents
where i.Rating.Equals(UInt16.Parse(numericUpDown3.Value.ToString())) == true
select i;
Student st = FindOfStudents.First();
if (evens.ToList().Count != 0)
{
FindOfStudents = new List <Student>(evens);
}
}
foreach (Student st in FindOfStudents)
{
listBox1.Items.Add(st.FIO + " " + st.Curs + " " + st.NumBook + " " + st.CodeG + " " + st.Discipline + " " + st.Rating);
}
SaveStudents.AddRange(FindOfStudents);
double AVG = 0;
foreach (Student st in SaveStudents)
{
AVG += st.Rating;
}
AVG = AVG / SaveStudents.Count;
MessageBox.Show("Средняя оценка найденной группы записей:" + AVG.ToString());
}
