Serializing arrays result wrong JSON

Question

I recently realized that serializing arrays with both Json.NET and Jil libraries, results a wrong JSON object! at least as far as https://jsonlint.com says. For example

var serializer = // Json.NET_Serializer or Jil_Serializer;
var json = serializer.Serialize(new[] {1,2,3,4,5});
Console.WriteLine(json);

results { [1, 2, 3, 4, 5] } which as https://jsonlint.com (and also https://jsonformatter.curiousconcept.com/) says, is wrong

// The error message in jsonformatter:

Expecting string or }, not [.

and expected result I think is:

[1, 2, 3, 4, 5]

Is there any hidden point which I missed? For example is there any special setting in Json.NET or Jil to solve this problem?

UPDATE: Note that the question is not how to achieve the mentioned result. But is about how to get JSON.NET or JIL to work right. Thanks in advance.

@RobbyCornelissen writing in console, or setting breakpoint, or saving in database... — amiry jd, Feb 15 '17 at 10:36
Have you tried adding your array object into a variable 1st? — Anestis Kivranoglou, Feb 15 '17 at 10:40
@AnestisKivranoglou yes. In my project, it's assigned to a variable. But I cannot understand how it can make any difference at all? — amiry jd, Feb 15 '17 at 10:41

Robby Cornelissen · Answer 1 · 2017-02-15T11:33:31.097

No idea what you're doing wrong, but with the following code using JSON.Net:

using System;
using System.IO;
using Newtonsoft.Json;

public class Program
{
    public static void Main()
    {
        var json = JsonConvert.SerializeObject(new[] {1,2,3,4,5});

        Console.WriteLine(json);

        JsonSerializer serializer = new JsonSerializer();

        using (StringWriter sw = new StringWriter())
        using (JsonWriter writer = new JsonTextWriter(sw))
        {
            serializer.Serialize(writer, new[] {1,2,3,4,5});

            Console.WriteLine(sw);
        }
    }
}

I get the correct output with both JsonConvert.SerializeObject() and JsonSerializer.Serialize() (fiddle here):

[1,2,3,4,5]
[1,2,3,4,5]

Reeseoo · Answer 2 · 2017-02-15T12:25:37.210

0

You could try using JavScriptSerializer, like so -

new JavaScriptSerializer().Serialize(new[] {1,2,3,4,5});

That produces the expected result for me.

edited Feb 15 '17 at 12:25

answered Feb 15 '17 at 10:51

Reeseoo

59
4

score 0 · Answer 3 · answered Feb 15 '17 at 10:55

0

Using JArray.FromObject() works fine for me:

Console.WriteLine(JArray.FromObject(new[] {1,2,3,4,5}));

answered Feb 15 '17 at 10:55

Just Shadow

10,860
6
57
75

Serializing arrays result wrong JSON

3 Answers3