private void button1_Click(object sender, EventArgs e) { string nume = textBox1.Text; int seats = 0; if (dataGridView1.SelectedRows.Count == 0) { MessageBox.Show("La ce concert sa fie biletul?"); return; } int idConcert = int.Parse(dataGridView1.SelectedRows[0].Cells[0].Value.ToString()); int nrLocuriLibere = int.Parse(dataGridView1.SelectedRows[0].Cells[6].Value.ToString()); try { seats = int.Parse(textBox2.Text); if (seats > nrLocuriLibere) { MessageBox.Show("Nu sunt destule locuri"); return; } } catch (Exception ex) { MessageBox.Show("Not a number, sorry not sorry :/ "); return; } if (seats != 0 && nume != "") { Bilet b = new Bilet(nume, idConcert, seats); server.sellTicket(b); } }