Serialization

Question

I am not sure why is both Serialized and Deserialized not called! Can anyone help? I am trying serialize JSON string it works fine except that these methods never called!

using System.Runtime.Serialization;


    [Serializable()]
    internal class ParkingFee 
    {
        float? intervalMin;
        float? intervalMax;
        int fee;
        string feeType;
        TypeVehicleType vehicleType;
        TypeParkinglotType parkinglotType;
        [NonSerialized]
        public int TotalParkingSpots;

        public ParkingFee()
        {
            vehicleType = new TypeVehicleType();
            parkinglotType = new TypeParkinglotType();
        }

        public float? IntervalMin
        {
            get { return intervalMin ; }
            set { intervalMin = value ; }
        }

        public float? IntervalMax
        {
            get { return intervalMax ; }
            set { intervalMax = value ; }
        }

        public int Fee
        {
            get { return fee ; }
            set { fee = value ; }
        }

        public string FeeType
        {
            get { return feeType ; }
            set { feeType = value ; }
        }

        public TypeVehicleType VehicleType
        {
            get { return vehicleType ; }
            set { vehicleType = value ; }
        }

        public TypeParkinglotType ParkinglotType
        {
            get { return parkinglotType ; }
            set { parkinglotType = value ; }
        }

	  [OnSerialized()]
 	  internal void OnSerializeMethod(StreamingContext context)
        {
            TotalParkingSpots = 100;
            System.Console.WriteLine("Setting default park spot");
        }

        [OnDeserialized()]
        internal void OnDeserializedMethod(StreamingContext context)
        {
            TotalParkingSpots = 100;
            System.Console.WriteLine("Setting default park spot");
        }
    }

Answer 1

you are specify the .net runtime serialization attributes for the runtime binary formatter.

you don't specify the json serializer you are using, so I'll assume System.Text.Json. in they case you use an interface rather than an attribute:

https://learn.microsoft.com/en-us/dotnet/api/system.text.json.serialization.ijsonondeserialized.ondeserialized?view=net-7.0#system-text-json-serialization-ijsonondeserialized-ondeserialized.

if you are using newtonsoft, it supports the attributes.