public double GetBalanceByStudentCardId(int cardid) { int studentId; try { studentId = StudentsManager.GetStudentIdByCardId(cardid); } catch (ApplicationException ex) { return(-1); } return(TransactionsDB.GetBalanceByStudentId(studentId)); }
public double GetBalanceByStudentUsername(string username) { int studentId; try { studentId = StudentsManager.GetStudentByUsername(username); } catch (ApplicationException ex) { return(-1); } return(TransactionsDB.GetBalanceByStudentId(studentId)); }
public double GetBalanceByStudentId(int id) { return(TransactionsDB.GetBalanceByStudentId(id)); }