void ClearData() { ID_RESERVATION.Clear(); AMOUNT.Clear(); DATE_RESERVATION.Clear(); MODEL_NAME.Clear(); RENTAL_DAYS.Clear(); }
private void ID_RESERVATION_VERIFY(object sender, EventArgs e) { DataTable dt = new DataTable(); dt = resadd.VERIFY_ID_RESERVATION(ID_RESERVATION.Text); if (dt.Rows.Count > 0) { MessageBox.Show("This ID Already Exist in the Database!"); ID_RESERVATION.Focus(); ID_RESERVATION.SelectionStart = 0; ID_RESERVATION.SelectionLength = ID_RESERVATION.TextLength; } }