Unable to deserialize Json string array of arrays into object when using Newtonsoft.Json

Question

i am using Newtonsoft.Json and trying to deserialize an array of arrays Json string into C# object i created.

This is the json string -

[4615,4618,4619,4626,4615,4626,4631,4636,4637],[4615,4618,4619,4626,4615,4626,4631,4636,4637],[4615,4618,4619,4626,4615,4626,4631,4636,4637]

This is my object model -

  public class NumberMatrix
    {
        public List<int> NumberIDs { get; set; }

        public NumberMatrix()
        {
            this.NumberIDs = new List<int>();
        }
    }

This is how i try to convert -

var numbers = HttpContext.Current.Request.Params["Numbers"];
var numberIDsMatrix = JsonConvert.DeserializeObject<List<NumberMatrix>>(numbers);

i tried to deserialize the json in few ways, and got different errors. is it possible to deserialize this json string? how?

That isn't valid JSON, you need to surround it with [...] for example. — DavidG
– DavidG, Commented Apr 18, 2019 at 16:20
Take a look here for JSON formatting for arrays stackoverflow.com/questions/11197818 — melkisadek
– melkisadek, Commented Apr 18, 2019 at 16:22

DavidG · Accepted Answer · 2019-04-18 16:23:06Z

0

That isn't valid JSON, you need to surround it with [...] for example. You could do this:

var result = JsonConvert.DeserializeObject<List<List<int>>>($"[{numbers}]");

answered Apr 18, 2019 at 16:23

DavidG

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2 Comments

doron hine Over a year ago

Its working. But what u wrote and what i wrote is the same.

DavidG Over a year ago

How is it the same?

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