Question 205248 in Json Question posted in
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Json – What is the method to convert a JArray contained within a JArray to a string?

I use newton’s json of C#.
Before I start, I know a bit about the json form, but I’m not sure I know it perfectly.
Therefore, the corresponding json form may be an incorrect json form.

This is json’s sample data.

{ "data" :
  [
    [
      {
        "key1":"value1",
        "key2":"value2"
      },{
        "key1":"value3",
        "key2":"value4"
      }
    ],[
      {
        "key10":"value10"
      }
    ]
  ]
}

This json data is the current JObject Type.
I would like to receive this JObject in the following string form.

    [
      {
        "key1":"value1",
        "key2":"value2"
      },{
        "key1":"value3",
        "key2":"value4"
      }
    ],[
      {
        "key10":"value10"
      }
    ]

I tried this code.

    //JObject jobj = /*Sample json*/;
    string json = (jobj["data"] as JArray)[0].ToString();

This code returns the following results.

    [
      {
        "key1":"value1",
        "key2":"value2"
      },{
        "key1":"value3",
        "key2":"value4"
      }
    ]
Tags:

2

Answers


  1. 0

    Note that your desired result is not valid JSON. It is two JSON arrays, separated by a comma. There is no single "root" element.

    So to produce your desired output, just join the arrays’ string representations with commas. string.Join does exactly that.

    if (jobj["data"]?.Values<JArray>() is IEnumerable<JArray?> arrays)
{
    Console.WriteLine(string.Join(",", arrays));
}
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  2. 0

    You can use Newtonsoft.Json.Linq to Deserialize the input string into a JToken as below.

    var result = JsonConvert.DeserializeObject<JToken>(res);

    And retrieve the "data" list as below.

    var _data = (JArray)result["data"];

    OR

    var _data = result["data"].ToList();

    If you want to convert it to a string, you can use .ToString() as below

    string _data = result["data"].ToString();
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