C#•2y ago

✅ Csharp serializing

Hello, I am really need this to work now and I am lost on how I can serialize because there are some errors which I do not really understand. I also am not sure where I should be serializing things.

46 Replies

Chiyoko_S•2y ago

What is this for?

MurukuBabyOP•2y ago

I want to serialize a seatDoubleLinkedList which contains Nodes for holding a seat class

Chiyoko_S•2y ago

ok first, don't use BinarySerializer the design of it is not very secure and it is known to have caused many problems it is actively being discouraged from use; you should look for alternatives instead what is the "seatDoubleLinkedList"?

MurukuBabyOP•2y ago

Oke, what should I use? and security not a problem since i just want to do a school homework

Chiyoko_S•2y ago

Yeah but overall it's very bad practice to use it

MurukuBabyOP•2y ago

Haha oke, can i send my whole code?

Chiyoko_S•2y ago

Sure

MurukuBabyOP•2y ago

Pls dun mind my bad coding

Chiyoko_S•2y ago

I guess looking at your directory structure you're practicing how to use linked list so I won't really comment on that part

MurukuBabyOP•2y ago

I just send all this?

Chiyoko_S•2y ago

oh ok you don't need to send those based on the description seatList is a doubly linked list? it is completely unnecessary to serialize the list as a linked list, you could just walk over the list and just save the details of each seat

MurukuBabyOP•2y ago

Yeh

Chiyoko_S•2y ago

one very common way to do that is to use something like JsonSerializer what does the list node look like?

MurukuBabyOP•2y ago

Hmm wait give me a moment

public class Node
    {

        private Seat _seat;
        private Node _prev;
        private Node _next;

        // Constructor
        public Node(Seat pSeat)
        {
            _seat = pSeat;
            _prev = null;
            _next = null;
        }

        public Seat Seat { get { return _seat; } set { _seat = value; } }
        public Node Next { get { return _next; } set { _next = value; } }
        public Node Prev { get { return _prev; } set { _prev = value; } }
    }

public class Node
    {

        private Seat _seat;
        private Node _prev;
        private Node _next;

        // Constructor
        public Node(Seat pSeat)
        {
            _seat = pSeat;
            _prev = null;
            _next = null;
        }

        public Seat Seat { get { return _seat; } set { _seat = value; } }
        public Node Next { get { return _next; } set { _next = value; } }
        public Node Prev { get { return _prev; } set { _prev = value; } }
    }

Chiyoko_S•2y ago

so really, what you want to store is the individual Seats in the linked list

MurukuBabyOP•2y ago

its just to store seat class and see whos next and prev

Chiyoko_S•2y ago

right?

MurukuBabyOP•2y ago

yeh

Chiyoko_S•2y ago

so what you could do well actually before that how does the Seat look like?

MurukuBabyOP•2y ago

public class Seat
    {

        private bool _bookStatus = false; // book selected?
        private int _row;
        private int _col;
        private bool _isDisabled = false;
        private Person _bookedBy = null; // booked by who?

        // Constructor
        public Seat(int row, int col)
        {
            _row = row;
            _col = col;
        }

        // Properties
        public int Row { get { return _row; } set { _row = value; } }

        public int Col { get { return _col;} set { _col = value; } }

        public bool BookStatus { get { return _bookStatus; } set { _bookStatus = value; } }

        public Person BookedBy { get { return _bookedBy; } set { _bookedBy = value; } }

        public bool IsDisabled { get { return _isDisabled; } set { _isDisabled = value; } }

        public Label Label { get; set; }

        // Class functions
        public String ComputeSeatLabel()
        {
            return ((char)(_row + 64)).ToString() + _col.ToString();
            /*return $"{Row}-{Col}";*/
        }

    }

public class Seat
    {

        private bool _bookStatus = false; // book selected?
        private int _row;
        private int _col;
        private bool _isDisabled = false;
        private Person _bookedBy = null; // booked by who?

        // Constructor
        public Seat(int row, int col)
        {
            _row = row;
            _col = col;
        }

        // Properties
        public int Row { get { return _row; } set { _row = value; } }

        public int Col { get { return _col;} set { _col = value; } }

        public bool BookStatus { get { return _bookStatus; } set { _bookStatus = value; } }

        public Person BookedBy { get { return _bookedBy; } set { _bookedBy = value; } }

        public bool IsDisabled { get { return _isDisabled; } set { _isDisabled = value; } }

        public Label Label { get; set; }

        // Class functions
        public String ComputeSeatLabel()
        {
            return ((char)(_row + 64)).ToString() + _col.ToString();
            /*return $"{Row}-{Col}";*/
        }

    }

Chiyoko_S•2y ago

hm ok I think you can use auto properties but that doesn't matter here

MurukuBabyOP•2y ago

I dont know whats that 0.0

Chiyoko_S•2y ago

private int _row;        
public int Row { get { return _row; } set { _row = value; } }

private int _row;        
public int Row { get { return _row; } set { _row = value; } }

this can become

public int Row { get; set; }

public int Row { get; set; }

MurukuBabyOP•2y ago

ooh

Chiyoko_S•2y ago

but anyway I think you're better of making the linked list into an array

MurukuBabyOP•2y ago

This is my files

MurukuBabyOP•2y ago

I cant my homework force me to use linkedlist

Chiyoko_S•2y ago

yes but you can always read the array back into a linked list when you load the file then once it's read into an array serializing the said array of Books into some format like JSON is much simpler there are probably solutions that can serialize the entire tree ("object graph" as they call it) but it seems completely unnecessary here and you definitely do not want to use BinaryFormatter

MurukuBabyOP•2y ago

does jsonSerializer can serialize into binary, its smhow also a requirement after looking

Chiyoko_S•2y ago

not sure what you mean by "binary" does it actually tell you that as a requirement show full text?

MurukuBabyOP•2y ago

Chiyoko_S•2y ago

arguable what constitutes as a "binary file" text files are also binary after all

MurukuBabyOP•2y ago

hmm wait i got an example somewhere actually idk, i think the teacher meant to use the binarySerializer

MurukuBabyOP•2y ago

test.dat

MurukuBabyOP•2y ago

I just want to save the entire state of booking, specifically the Seat and Person class and also the Stack class but since In the Form i design it that Form can access the PersonManager and SeatManager, PersonManager have access to the list of Person class, while SeatManager have access to the doubleLinkedList which have Nodes which have Seat class. So should I covert to array in the SeatManager class?

Omnissiah•2y ago

if you want a "more binary" version of json you could use bson 😜

MurukuBabyOP•2y ago

I think i have to use binaryFormatter

MurukuBabyOP•2y ago

I just dont understand why this is happening

Omnissiah•2y ago

is it written in the requirements "use binary formatter"?

MurukuBabyOP•2y ago

I guess in this. The teacher also gave an example on how to use this and i used the exact code but i got error would the implementation of using other formatter be different?

Unknown User•2y ago

Message Not Public

MurukuBabyOP•2y ago

I tried different formatter but i still failed to serialize am I doing something else wrong?

Unknown User•2y ago

Message Not Public

MurukuBabyOP•2y ago

Oh no i cant serialize a class with Label? Like this one?

Unknown User•2y ago

Message Not Public

MurukuBabyOP•2y ago

It alright already, it because Label is not serializable and the Seat class i have this

public Label Label { get; set; }

public Label Label { get; set; }

Ty guys

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✅ Csharp serializing