public string isRenteeOrRenter(string renteeID, string rentalID) { Member member = MemberDB.getMemberbyID(renteeID); if (member.Email == Convert.ToString(Session["user"])) { return("Renter: " + MemberDB.getMemberbyID(ItemDB.getItembyID(RentalDB.getRentalbyID(rentalID).Item.ItemID).Renter.MemberID).Name); } else { return("Rentee: " + RentalDB.getRenteeforRental(rentalID).Name); } }