//Select button is clicked private void bSelect_Click(object sender, EventArgs e) { List <string>[] list; list = dbConnect.Select(); dgDisplay.Rows.Clear(); for (int i = 0; i < list[0].Count; i++) { int number = dgDisplay.Rows.Add(); dgDisplay.Rows[number].Cells[0].Value = list[0][i]; dgDisplay.Rows[number].Cells[1].Value = list[1][i]; dgDisplay.Rows[number].Cells[2].Value = list[2][i]; } }