private void Save_Button_Click(object sender, RoutedEventArgs e) { this.totalbill_bill.IsEnabled = true; if (patname_bill.SelectedIndex == -1) { return; } String patientname = patname_bill.SelectedValue.ToString(); Console.WriteLine(patientname); if (patientname == null || pat_docchrg.Text == "") { return; } String ptype = patient_type.Text; String pname = patname_bill.Text; Console.WriteLine(pname); Console.WriteLine(ptype); //String pdocchg = pat_docchrg.Text; //Console.WriteLine(pdocchg); double medprice = double.Parse(medchrge_bill.Text); double dochrge = double.Parse(pat_docchrg.Text); Console.WriteLine(dochrge); int nod = int.Parse(noofday_bill.Text); int pid = int.Parse(patientname); var dateofadmit = indpatList.Where(x => x.pat_id == pid).Select(x => x.admit_date).FirstOrDefault(); var docid = patientList.Where(x => x.pat_id == pid).Select(x => x.doc_id).FirstOrDefault(); var docname = doctorList.Where(x => x.doc_id == docid).Select(x => x.Employee.emp_firstname).FirstOrDefault(); double totalbill; Bill bill = new Bill(); if (ptype.Equals("outdoor")) { bill.pat_id = pid; bill.pat_name = pname; bill.pat_type = ptype; bill.med_charge = medprice; bill.doctor_charge = dochrge; bill.room_charge = null; bill.no_of_days = null; totalbill = medprice + dochrge; bill.total_bill = totalbill; bill.doc_name = docname; bill.admit_date = null; hmsfac.addBill(bill); billpatlist.Add(bill); dataGrid_Patients_Bill.Items.Refresh(); new PatientBills(bill, patname_bill.Text).ShowDialog(); hmsfac.removePatientById(pid); patientList = hmsfac.getPatient(); patname_bill.ItemsSource = patientList; dataGrid_Patient.ItemsSource = patientList; dataGrid_Patient.Items.Refresh(); //indpatList = hmsfac.getIndoorPatient(); //dataGrid_IndoorPatients.Items.Refresh(); } else if (ptype.Equals("indoor")) { double roomchrge = double.Parse(roomchrg_bill.Text); bill.pat_id = pid; bill.pat_type = ptype; bill.pat_name = pname; bill.med_charge = medprice; bill.room_charge = roomchrge; bill.no_of_days = nod; bill.doctor_charge = dochrge; totalbill = medprice + dochrge + (roomchrge * nod); bill.admit_date = dateofadmit; bill.leave_date = DateTime.Today; bill.doc_name = docname; bill.total_bill = totalbill; hmsfac.addBill(bill); billpatlist.Add(bill); dataGrid_Patients_Bill.Items.Refresh(); new PatientBills(bill, patname_bill.Text).ShowDialog(); hmsfac.removePatientById(pid); patientList = hmsfac.getPatient(); dataGrid_Patient.Items.Refresh(); patname_bill.ItemsSource = patientList; dataGrid_Patient.ItemsSource = patientList; indpatList = hmsfac.getIndoorPatient(); dataGrid_IndoorPatients.Items.Refresh(); } else { Console.WriteLine("i am here"); return; } this.patname_bill.Text = ""; this.patient_type.Text = ""; this.pat_docchrg.Text = ""; this.medchrge_bill.Text = ""; this.roomchrg_bill.Text = ""; this.noofday_bill.Text = ""; }