private void dataGridView1_RowHeaderMouseClick(object sender, DataGridViewCellMouseEventArgs e) { int index = dataGridView1.CurrentRow.Index; DataGridViewRow ligne = dataGridView1.Rows[index]; List <String> values = new List <String>(); foreach (DataGridViewCell cell in ligne.Cells) { values.Add(cell.Value.ToString()); } List <String> libelles = Utilitaire.getList(comboBox1); foreach (string libelle in libelles) { Console.WriteLine(libelle.ToString()); } }