Encode OrderOject into a string

Question

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Tutorial on Encoding orderobject into a string then Decode string back to original orderobject

Can someone assist me or point me to the right direction.

                        Random randomCreditCardNo = new Random();
                        string senderId = retailers[i].ManagedThreadId.ToString();
                        int cardNo = randomCreditCardNo.Next(5000, 7000);
                        int amount = chicken.getPrice();

                        OrderObject orderObject = new OrderObject(senderId, cardNo, amount);