/// <summary>
/// gets the all subcontractor from the 'beszallito' table
/// </summary>
/// <returns>list of subcontractors 'beszallito_id'</returns>
public List <string> getSubcontrList()
{
mdi.openConnection();
List <string> list = mdi.executeQueryGetOneFieldToList(querySubcontrList);
mdi.closeConnection();
if (list == null)
{
throw new ErrorServiceProductGetSubcontr("Beszállítók adatlista megalkotása sikertelen (ModProdListPart)");
}
return(list);
}