/// initialise some comboboxes
private void BeforeShowDetailsManual(ARecurringJournalRow ARow)
{
// SubSystemCode: the user can only select GL, but the system can generate eg. AP journals or GR journals
this.cmbDetailSubSystemCode.Items.Clear();
this.cmbDetailSubSystemCode.Items.AddRange(new object[] { ARow.SubSystemCode });
TFinanceControls.InitialiseTransactionTypeList(ref cmbDetailTransactionTypeCode, FLedgerNumber, ARow.SubSystemCode);
}