CORNCUCIOCO

private void FormLogin_Load(object sender, EventArgs e)
        {
            button1.Enabled = false;
        }

        private void textBox2_TextChanged(object sender, EventArgs e)
        {
            if (textBox1.TextLength > 0 && textBox2.TextLength>0)
            {
                button1.Enabled = true;
            }
            else
            {
                button1.Enabled = false;
            }
        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            progressBar1.Value++;
            if (progressBar1.Value == progressBar1.Maximum)
            {
                timer1.Stop();
                this.DialogResult = DialogResult.OK;
            }
        }

        private void button1_Click(object sender, EventArgs e)
        {
            timer1.Start();
        }
    }

PP:
 private void Form1_Load(object sender, EventArgs e)
        {
            FormLogin log = new FormLogin();
            if (log.ShowDialog() == DialogResult.Cancel)
            {
                this.Close();
            }

            /* DateTime data = Convert.ToDateTime("0/0/0");
             listBox1.Items.Add(data);
             */
            parent1.Text = "An I";
            treeView1.Nodes.Add(parent1);

  TreeNode child;

f (m.An == "I")
                {
                    child = new TreeNode();
                    child.Text = m.Denumire;
                    parent1.Nodes.Add(child);
                    foreach(Prezentare prez in lista_p)
                    {
                        TreeNode child2 = new TreeNode();
                        child2.Text = prez.Nr_prezentare;
                        child.Nodes.Add(child2);
                    }


                }
 private void button1_Click(object sender, EventArgs e)
        {

            foreach (Materie mat in lista_m)
            {
                int nr_rest_mat = 0;
                foreach (Prezentare pr in mat.Prezentari)
                {

                    if (pr.Nota_examen < 5)
                    {
                        nr_rest_mat++;

                    }
                }
                if (nr_rest_mat >= 2)
                {
                    listBox1.Items.Add(mat.Denumire);
                }
            }
        }


CLASS:
        private string denumire;
          private List<Prezentare> prezentari;

        public Materie (string denumire, string an, double nota_lab, List<Prezentare> prezentari)
        {
            this.denumire = denumire;
            this.an = an;
            this.nota_lab = nota_lab;
            this.prezentari = prezentari;
            if (calculMedie() != 0)
            {
                nota_finala = (nota_lab + calculMedie()) / 2;
            }
        }
        [Description("Denumire materie"), Category("Informatii materie")]
        public string Denumire
        {
            get { return denumire; }
        }


TEST2::
namespace Test_florarie
{
    public partial class Form1 : Form
    {
        private List<Floare> lista = new List<Floare>();
        private double total_vanzari = 0;
        System.IO.StreamReader file = new System.IO.StreamReader("fisier_plante.txt");
        private string linie;
        public Form1()
        {
            InitializeComponent();
            listBox1.MouseDoubleClick += new MouseEventHandler(listBox1_DoubleClick);
        }

        private void button1_Click(object sender, EventArgs e)
        {
            Floare f = new Floare(dateTimePicker1.Value, comboBox1.Text, Convert.ToDouble(textBox2.Text), textBox1.Text);
            lista.Add(f);
            listBox1.Items.Add(textBox1.Text);
        }

        private void listBox1_DoubleClick(object sender, MouseEventArgs e)
        {
            foreach (Floare f in lista)
            {
                if (listBox1.SelectedItem.ToString() == f.Denumire)
                {
                    propertyGrid1.SelectedObject = f;
                    if (f.calculZile() >= 3)
                    {
                        if (f.Categorie == "Flori taiate")
                        {
                            MessageBox.Show("Floarea este ofilita!!!", "Alerta", MessageBoxButtons.OK, MessageBoxIcon.Exclamation, MessageBoxDefaultButton.Button1);

                        }

                        if (f.Categorie == "Plante in ghiveci")
                        {
                            if (MessageBox.Show("Floarea trebuie udata!!!\n Doriti sa o udati?", "Alerta", MessageBoxButtons.YesNo, MessageBoxIcon.Question, MessageBoxDefaultButton.Button1) == DialogResult.Yes)
                            {
                                f.Data = DateTime.Now;
                            }
                        }
                    }
                }
            }
        }

            private void button3_Click(object sender, EventArgs e)
            {
                listBox1.Items.Add("\n");
                foreach (Floare f in lista)
                {
                    if (string.Compare(f.Denumire, textBox3.Text) == 0)
                    {
                        listBox1.Items.Add(f.Denumire);
                    }
                }
            }

            private void button4_Click(object sender, EventArgs e)
            {
                listBox1.SelectionMode = SelectionMode.One;
                if (this.listBox1.SelectedIndex >= 0)
                {
                    foreach (Floare f in lista)
                    {
                        if (listBox1.SelectedItem.ToString() == f.Denumire)
                        {
                            total_vanzari += f.Pret;
                            this.listBox1.Items.RemoveAt(this.listBox1.SelectedIndex);
                            lista.Remove(f);
                            break;
                        }
                    }
                }
            }

            private void button5_Click(object sender, EventArgs e)
            {
                textBox4.Clear();
                textBox4.AppendText(total_vanzari.ToString());
            }

        private void button2_Click(object sender, EventArgs e)
        {
            while ((linie = file.ReadLine()) != null)
            {
                String[] parts = linie.Split(';');

                Floare f = new Floare(Convert.ToDateTime(parts[1]), parts[2], Convert.ToDouble(parts[3]), parts[0]);
                lista.Add(f);
                listBox1.Items.Add(f.Denumire);
            }
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            Login log = new Login();
            if (log.ShowDialog() == DialogResult.Cancel)
                this.Close();
        }
    }
    }

TETS3::
namespace Test_studenti_carti
{
    public partial class Form1 : Form
    {
        System.IO.StreamReader file1 = new System.IO.StreamReader("fisier_studenti.txt");
        System.IO.StreamReader file2 = new System.IO.StreamReader("fisier_carti.txt");
        private String linie1;
        private String linie2;
        private List<Student> lista_s = new List<Student>();

        TreeNode parent1;
        TreeNode parent2;
        TreeNode parent3;
        TreeNode parent4;

        TreeNode nodSelectat = null;
        //int indexNodSelectat = 0;

        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            FormLogin log = new FormLogin();
            if(log.ShowDialog() == DialogResult.Cancel)
            {
                this.Close();
            }

            //creare noduri in TreeView

            parent1 = new TreeNode();
            parent1.Text = "Anul I";
            treeView1.Nodes.Add(parent1);

            parent2 = new TreeNode();
            parent2.Text = "Anul II";
            treeView1.Nodes.Add(parent2);

            parent3 = new TreeNode();
            parent3.Text = "Anul III";
            treeView1.Nodes.Add(parent3);

            parent4 = new TreeNode();
            parent4.Text = "Anul IV";
            treeView1.Nodes.Add(parent4);



            //citire din fisier

            while ((linie1 = file1.ReadLine()) != null)
            {
                string[] parts1 = linie1.Split(';');
                List<Carte> lista_c = new List<Carte>();
                while ((linie2 = file2.ReadLine()) != null)
                {

                    string[] parts2 = linie2.Split(';');
                    if (parts1[0] == parts2[0])
                    {
                        Carte c = new Carte(parts2[1], parts2[2], parts2[3], Convert.ToDateTime(parts2[4]), Convert.ToDateTime(parts2[5]));

                        lista_c.Add(c);

                    }
                }
                file2.DiscardBufferedData();
                file2.BaseStream.Seek(0, System.IO.SeekOrigin.Begin);
                Student s = new Student(parts1[1], parts1[2], parts1[3], parts1[4], Convert.ToDateTime(parts1[5]), lista_c);
                lista_s.Add(s);

                //adaugare student in TreeView in functie de an

                TreeNode child = new TreeNode();


                if (s.An == "I")
                {

                    child.Text = s.Nume;
                    parent1.Nodes.Add(child);
                    foreach (Carte car in lista_c)
                    {
                        TreeNode child2 = new TreeNode();
                        child2.Text = car.Titlu;
                        child.Nodes.Add(child2);
                    }
                }

                if (s.An == "II")
                {

                    child.Text = s.Nume;
                    parent2.Nodes.Add(child);
                    foreach (Carte car in lista_c)
                    {
                        TreeNode child2 = new TreeNode();
                        child2.Text = car.Titlu;
                        child.Nodes.Add(child2);
                    }
                }

                if (s.An == "III")
                {

                    child.Text = s.Nume;
                    parent3.Nodes.Add(child);
                    foreach (Carte car in lista_c)
                    {
                        TreeNode child2 = new TreeNode();
                        child2.Text = car.Titlu;
                        child.Nodes.Add(child2);
                    }
                }

                if (s.An == "IV")
                {

                    child.Text = s.Nume;
                    parent4.Nodes.Add(child);
                    foreach (Carte car in lista_c)
                    {
                        TreeNode child2 = new TreeNode();
                        child2.Text = car.Titlu;
                        child.Nodes.Add(child2);
                    }
                }

            }

        }

        private void treeView1_AfterSelect(object sender, TreeViewEventArgs e)
        {
            nodSelectat = e.Node;
            foreach (Student stud in lista_s)
            {

                    if (e.Node.Text == stud.Nume)
                    {
                        //indexNodSelectat = e.Node.Index;
                        propertyGrid1.SelectedObject = stud;
                    break;

                    }
                    foreach (Carte car in stud.Carti)
                    {

                            if (e.Node.Text == car.Titlu)
                            {
                                //indexNodSelectat = e.Node.Index;
                                propertyGrid1.SelectedObject = car;
                                if (car.calculIntarziere() > 0)
                                {
                                    propertyGrid1.ViewForeColor = Color.Red;
                                    break;
                                }
                                else
                                {
                                    propertyGrid1.ViewForeColor = Color.Black;
                                }

                            }

                    }


            }

        }

        private void button2_Click(object sender, EventArgs e)
        {
            listBox1.Items.Clear();
            foreach (Student stud in lista_s)
            {
                int nr_carti_termen_depasit = 0;
                foreach (Carte carte in stud.Carti)
                {
                    if (carte.calculIntarziere() > 0)
                    {
                        nr_carti_termen_depasit++;
                    }
                }

                if (nr_carti_termen_depasit > 0)
                {
                    listBox1.Items.Add(stud.Nume + " " + nr_carti_termen_depasit + " carti");

                }
            }
        }

        private void button1_Click(object sender, EventArgs e)
        {
            foreach (Student stud in lista_s)
            {
                foreach (Carte car in stud.Carti)
                {
                    if (nodSelectat.Text == car.Titlu)
                    {
                        stud.Carti.Remove(car);
                        treeView1.Nodes.Remove(nodSelectat);
                        propertyGrid1.SelectedObject = null;
                        break;
                    }
                }
            }
        }
    }
}
namespace Test_studenti_carti
{
    public partial class Form1 : Form
    {
        System.IO.StreamReader file1 = new System.IO.StreamReader("fisier_studenti.txt");
        System.IO.StreamReader file2 = new System.IO.StreamReader("fisier_carti.txt");
        private String linie1;
        private String linie2;
        private List<Student> lista_s = new List<Student>();

        TreeNode parent1;
        TreeNode parent2;
        TreeNode parent3;
        TreeNode parent4;

        TreeNode nodSelectat = null;
        //int indexNodSelectat = 0;

        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            FormLogin log = new FormLogin();
            if(log.ShowDialog() == DialogResult.Cancel)
            {
                this.Close();
            }

            //creare noduri in TreeView

            parent1 = new TreeNode();
            parent1.Text = "Anul I";
            treeView1.Nodes.Add(parent1);

            parent2 = new TreeNode();
            parent2.Text = "Anul II";
            treeView1.Nodes.Add(parent2);

            parent3 = new TreeNode();
            parent3.Text = "Anul III";
            treeView1.Nodes.Add(parent3);

            parent4 = new TreeNode();
            parent4.Text = "Anul IV";
            treeView1.Nodes.Add(parent4);



            //citire din fisier

            while ((linie1 = file1.ReadLine()) != null)
            {
                string[] parts1 = linie1.Split(';');
                List<Carte> lista_c = new List<Carte>();
                while ((linie2 = file2.ReadLine()) != null)
                {

                    string[] parts2 = linie2.Split(';');
                    if (parts1[0] == parts2[0])
                    {
                        Carte c = new Carte(parts2[1], parts2[2], parts2[3], Convert.ToDateTime(parts2[4]), Convert.ToDateTime(parts2[5]));

                        lista_c.Add(c);

                    }
                }
                file2.DiscardBufferedData();
                file2.BaseStream.Seek(0, System.IO.SeekOrigin.Begin);
                Student s = new Student(parts1[1], parts1[2], parts1[3], parts1[4], Convert.ToDateTime(parts1[5]), lista_c);
                lista_s.Add(s);

                //adaugare student in TreeView in functie de an

                TreeNode child = new TreeNode();


                if (s.An == "I")
                {

                    child.Text = s.Nume;
                    parent1.Nodes.Add(child);
                    foreach (Carte car in lista_c)
                    {
                        TreeNode child2 = new TreeNode();
                        child2.Text = car.Titlu;
                        child.Nodes.Add(child2);
                    }
                }

                if (s.An == "II")
                {

                    child.Text = s.Nume;
                    parent2.Nodes.Add(child);
                    foreach (Carte car in lista_c)
                    {
                        TreeNode child2 = new TreeNode();
                        child2.Text = car.Titlu;
                        child.Nodes.Add(child2);
                    }
                }

                if (s.An == "III")
                {

                    child.Text = s.Nume;
                    parent3.Nodes.Add(child);
                    foreach (Carte car in lista_c)
                    {
                        TreeNode child2 = new TreeNode();
                        child2.Text = car.Titlu;
                        child.Nodes.Add(child2);
                    }
                }

                if (s.An == "IV")
                {

                    child.Text = s.Nume;
                    parent4.Nodes.Add(child);
                    foreach (Carte car in lista_c)
                    {
                        TreeNode child2 = new TreeNode();
                        child2.Text = car.Titlu;
                        child.Nodes.Add(child2);
                    }
                }

            }

        }

        private void treeView1_AfterSelect(object sender, TreeViewEventArgs e)
        {
            nodSelectat = e.Node;
            foreach (Student stud in lista_s)
            {

                    if (e.Node.Text == stud.Nume)
                    {
                        //indexNodSelectat = e.Node.Index;
                        propertyGrid1.SelectedObject = stud;
                    break;

                    }
                    foreach (Carte car in stud.Carti)
                    {

                            if (e.Node.Text == car.Titlu)
                            {
                                //indexNodSelectat = e.Node.Index;
                                propertyGrid1.SelectedObject = car;
                                if (car.calculIntarziere() > 0)
                                {
                                    propertyGrid1.ViewForeColor = Color.Red;
                                    break;
                                }
                                else
                                {
                                    propertyGrid1.ViewForeColor = Color.Black;
                                }

                            }

                    }


            }

        }

        private void button2_Click(object sender, EventArgs e)
        {
            listBox1.Items.Clear();
            foreach (Student stud in lista_s)
            {
                int nr_carti_termen_depasit = 0;
                foreach (Carte carte in stud.Carti)
                {
                    if (carte.calculIntarziere() > 0)
                    {
                        nr_carti_termen_depasit++;
                    }
                }

                if (nr_carti_termen_depasit > 0)
                {
                    listBox1.Items.Add(stud.Nume + " " + nr_carti_termen_depasit + " carti");

                }
            }
        }

        private void button1_Click(object sender, EventArgs e)
        {
            foreach (Student stud in lista_s)
            {
                foreach (Carte car in stud.Carti)
                {
                    if (nodSelectat.Text == car.Titlu)
                    {
                        stud.Carti.Remove(car);
                        treeView1.Nodes.Remove(nodSelectat);
                        propertyGrid1.SelectedObject = null;
                        break;
                    }
                }
            }
        }
    }
}



TEST 4:::
namespace MTP_L1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }

        private List<Student> lista = new List<Student>();

        private void button1_Click(object sender, EventArgs e)
        {
            byte[] note = new byte[5];
            note[0] = Convert.ToByte(comboBox2.Text);
            note[1] = Convert.ToByte(comboBox3.Text);
            note[2] = Convert.ToByte(comboBox4.Text);
            note[3] = Convert.ToByte(comboBox5.Text);
            note[4] = Convert.ToByte(comboBox6.Text);
            Student s = new Student(Convert.ToByte(cmbAn.Text), note, txtNume.Text, (byte)numVarsta.Value);
            lista.Add(s);
            listBox1.Items.Add(s.AfisareStudent());

        }

        private void button3_Click(object sender, EventArgs e)
        {
            listBox1.Items.Add("\n");
            ComparaMedie cm = new ComparaMedie();
            lista.Sort(cm);
            foreach (Student s in lista)
                listBox1.Items.Add(s.AfisareStudent());
        }

        private void button2_Click(object sender, EventArgs e)
        {
            listBox1.Items.Add("\n");
            ComparaNume cn = new ComparaNume();
            lista.Sort(cn);
            foreach (Student s in lista)
                listBox1.Items.Add(s.AfisareStudent());
        }

        private void button4_Click(object sender, EventArgs e)
        {
            listBox1.Items.Add("\n");
            byte an = Convert.ToByte(comboBox7.Text);
            foreach (Student s in lista)
                if (s.AnStudiu == an)
                    listBox1.Items.Add(s.AfisareStudent());

        }

        private void button5_Click(object sender, EventArgs e)
        {
            listBox1.Items.Add("\n");
            foreach (Student s in lista)
                if (string.Compare(s.NumeStudent, textBox2.Text) == 0)
                    listBox1.Items.Add(s.AfisareStudent());
        }

        private void button6_Click(object sender, EventArgs e)
        {
            listBox1.SelectionMode = SelectionMode.MultiExtended;
            if (this.listBox1.SelectedIndex >= 0)
                this.listBox1.Items.RemoveAt(this.listBox1.SelectedIndex);
        }
    }
}
namespace MTP_L1
{
    class ComparaMedie : IComparer<Student>
    {
        public int Compare(Student x, Student y)
        {
            if (x.Medie() > y.Medie())
                return 1;
            else if (x.Medie() == y.Medie())
                return 0;
            else
                return -1;
        }
    }
}




TEST5:::

namespace MTP_L2
{
    public partial class Form1 : Form
    {
        TreeNode parent1;
        TreeNode parent2;
        TreeNode parent3;
        TreeNode parent4;

        TreeNode nodDeSters = null;
        int indexDeSters = 0;
        int index = 0;

        List<Persoana> agenda = new List<Persoana>();



        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            parent1 = new TreeNode();
            parent1.Text = "Prieteni";
            parent1.ImageIndex = 1;
            tvwAgenda.Nodes.Add(parent1);

            parent2 = new TreeNode();
            parent2.Text = "Colegi";
            parent2.ImageIndex = 2;
            tvwAgenda.Nodes.Add(parent2);

            parent3 = new TreeNode();
            parent3.Text = "Rude";
            parent3.ImageIndex = 3;
            tvwAgenda.Nodes.Add(parent3);

            parent4 = new TreeNode();
            parent4.Text = "Diversi";
            parent4.ImageIndex = 4;
            tvwAgenda.Nodes.Add(parent4);

        }

        private void buttonAdauga_Click(object sender, EventArgs e)
        {
            if (agenda.Exists(x => x.Nume.Equals(textBoxNume.Text)))
            {
                MessageBox.Show("Persoana pe care doriti sa o introduceti exista deja in agenda", "Eroare", MessageBoxButtons.OK, MessageBoxIcon.Exclamation, MessageBoxDefaultButton.Button1);
            }
              else
            {
                index++;

                Persoana p = new Persoana(index, textBoxNume.Text, dateTimePicker1.Value, textBoxTelefon.Text, textBoxAdresa.Text, (Categorie)comboBoxCategorie.SelectedIndex);

                agenda.Add(p);

                TreeNode child = new TreeNode();

                if (comboBoxCategorie.Text == "Prieteni")
                {
                    child.Name = index.ToString();
                    child.Text = textBoxNume.Text;
                    child.ImageIndex = 1;
                    parent1.Nodes.Add(child);
                }
                if (comboBoxCategorie.Text == "Colegi")
                {
                    child.Name = index.ToString();
                    child.Text = textBoxNume.Text;
                    child.ImageIndex = 2;
                    parent2.Nodes.Add(child);
                }
                if (comboBoxCategorie.Text == "Rude")
                {
                    child.Name = index.ToString();
                    child.Text = textBoxNume.Text;
                    child.ImageIndex = 3;
                    parent3.Nodes.Add(child);
                }
                if (comboBoxCategorie.Text == "Diversi")
                {
                    child.Name = index.ToString();
                    child.Text = textBoxNume.Text;
                    child.ImageIndex = 4;
                    parent4.Nodes.Add(child);
                }

            }

        }

        private void tvwAgenda_AfterSelect(object sender, TreeViewEventArgs e)
        {
            nodDeSters = e.Node; //pentru selectia nodului de sters
            foreach (Persoana p in agenda)
            {
                if (e.Node.Text == p.Nume)
                {
                    indexDeSters = Convert.ToInt16(e.Node.Name); //retine indexul nodului selectat
                    propertyGrid1.SelectedObject = p;
                    break;
                }

            }
        }

        private void buttonCauta_Click(object sender, EventArgs e)
        {
            foreach (Persoana p in agenda)
            {
                if (textBoxCautare.Text == p.Nume)
                {
                    propertyGrid1.SelectedObject = p;
                    break;
                }

            }
        }

        private void buttonSterge_Click(object sender, EventArgs e)
        {

            foreach (Persoana p in agenda)
            {
                if (indexDeSters == p.Index)
                {
                    if (MessageBox.Show("Doriti sa stergeti persoana [" + p.Nume + "]?", "Intrebare", MessageBoxButtons.YesNo, MessageBoxIcon.Question, MessageBoxDefaultButton.Button2) == DialogResult.Yes)
                    {
                        agenda.Remove(p); //sterge din lista
                        tvwAgenda.Nodes.Remove(nodDeSters); //sterge nodul din treeview
                        propertyGrid1.SelectedObject = null; //sterge informatiile din propertygrid
                        break;
                    }
                }
            }
        }

        string dir = Application.StartupPath;
        private void buttonSalveazaFisier_Click(object sender, EventArgs e)
        {

            StreamWriter sw = new StreamWriter(dir + "\\agenda.txt", true);

            foreach (Persoana p in agenda)
            {
                if (indexDeSters == p.Index) //indexul nodului selectat
                {
                    sw.WriteLine("Nume: " + p.Nume);
                    sw.WriteLine("Categorie: " + p.Categorie.ToString());
                    sw.WriteLine("Data nasterii: " + p.DataNasterii);
                    sw.WriteLine("Telefon: " + p.Telefon);
                    sw.WriteLine("Adresa: " + p.Adresa);
                    sw.WriteLine("----------------------------------------");
                    sw.Close();
                    break;
                }
            }

            //Process.Start("notepad.exe", dir + "\\agenda.txt"); // deschide fisierul de fiecare data cand salvez o persoana in el
        }

    }
}



namespace MTP_L2
{
    enum Categorie : int
    {
        Prieteni,
        Colegi,
        Rude,
        Diversi
    };
}