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using System;
using System.Windows.Forms;

namespace StudentiDataGrid
{
    public partial class Form1 : Form
    {
        public string[,] studenti = new string[4, 4];
        public int j, k = 0;

        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            if (j < 4)
            {
                studenti[j, 0] = textBox3.Text;
                studenti[j, 1] = textBox4.Text;
                studenti[j, 2] = textBox5.Text;

                j++;

                DataGridViewRow riga = new DataGridViewRow();
                riga.CreateCells(dataGridView1);

                for (int i = 0; i < 3; i++)
                    riga.Cells[i].Value = studenti[j - 1, i];

                dataGridView1.Rows.Add(riga);
            }

            else
                MessageBox.Show("Numero massimo di inserimenti raggiunto.", "Errore", MessageBoxButtons.OK, MessageBoxIcon.Warning);
        }

        private void button2_Click(object sender, EventArgs e)
        {
            if (k < 4)
            {
                int voto_min = Convert.ToInt32(textBox6.Text);
                int assenze_max = Convert.ToInt32(textBox7.Text);

                for (int i = k; i < k + 1; i++)
                {
                    if (Convert.ToInt32(studenti[i, 1]) >= voto_min && Convert.ToInt32(studenti[i, 2]) <= assenze_max)
                        studenti[i, 3] = "Promosso";

                    else
                        studenti[i, 3] = "Bocciato";

                    dataGridView1.Rows[i].Cells[3].Value = studenti[i, 3];
                }

                k++;
            }

            else
                MessageBox.Show("Numero massimo di inserimenti raggiunto.", "Errore", MessageBoxButtons.OK, MessageBoxIcon.Warning);
        }
    }
}