public List <Patient> GetallUnpaidPatients(DateTime fromDate, DateTime toDate)
        {
            PatientGatewaysrb aPatientGatewaysrb = new PatientGatewaysrb();
            List <Patient>    patients           = aPatientGatewaysrb.GetallUnpainPatient(fromDate, toDate);

            if (patients.Count == 0)
            {
                Patient aPatient = new Patient();
                aPatient.BillNo      = "N/A";
                aPatient.MobileNo    = "N/A";
                aPatient.PatientName = "N/A";
                aPatient.TotalFee    = 0;
                patients.Add(aPatient);
                return(patients);
            }
            else
            {
                return(patients);
            }
        }
        public double GetTotalDue(DateTime fromDate, DateTime toDate)
        {
            PatientGatewaysrb aPatientGatewaysrb = new PatientGatewaysrb();

            return(aPatientGatewaysrb.GetTotalDue(fromDate, toDate));
        }