public CustomerReceiptInterface(int BA_ID, int custID, string custname, string bookname, string category, string author, string assigneddate, string submissiondate) { InitializeComponent(); LibrarianController lc = new LibrarianController(); baidlbl.Text = "Receipt No: " + BA_ID.ToString(); customerIDlbl.Text = custID.ToString(); customernamelbl.Text = custname; booknamelbl.Text = bookname; booknamelbl2.Text = booknamelbl.Text; categorylbl.Text = category; authorlbl.Text = author; DateTime d1, d2; int totaldays; totaldays = lc.calculateTotalDays(assigneddate, submissiondate, out d1, out d2); totaldayslbl.Text = totaldays.ToString(); submissiondatelbl.Text = d2.Date.ToShortDateString().ToString(); assigneddatelbl.Text = d1.Date.ToShortDateString().ToString(); int priceperday; string bookid; int discountpercent; float afterdiscount; DataTable dt = new DataTable(); dt = lc.getCustomerAddressAndContactNo(custID); addresslbl.Text = dt.Rows[0][0].ToString(); contactnolbl.Text = dt.Rows[0][1].ToString(); priceperday = lc.getpriceperdayAndBookID(BA_ID, custID, out bookid); priceperdaylbl.Text = priceperday.ToString(); bookidlbl.Text = bookid; dt = new DataTable(); dt = lc.getMembershipTypeAndDiscount(BA_ID); membershiplbl.Text = dt.Rows[0][0].ToString(); membershipdiscountlbl.Text = dt.Rows[0][1].ToString() + " %"; discountpercent = Convert.ToInt32(dt.Rows[0][1]); int totalamount; totalamount = lc.calculateTotalAmount(priceperday, totaldays); totalamountlbl.Text = totalamount.ToString() + " PKR"; afterdiscount = lc.getAfterDiscountAmount(discountpercent, totalamount); afterdiscountlbl.Text = Convert.ToString(afterdiscount) + " PKR"; }