NewtonSoft JSON Deserialize getting KEY value

Question

Good day everyone. I would like to know how is that possible (if is) do such trick (I'm using c# and NewtonSoft JSON library) 1. If I look for a official documentation, there's such example:`

string json = @"{
'Email': 'james@example.com',
  'Active': true,
  'CreatedDate': '2013-01-20T00:00:00Z',
  'Roles': [
    'User',
    'Admin'
  ]
}";

Account account = JsonConvert.DeserializeObject<Account>(json);

Console.WriteLine(account.Email);`

I agree, if works. I can find Email VALUE using Email AS KEY. 2. But how can I find ALL pairs (Key: Value) if I have no idea about KEYs I get? For example, if I have some JSON like:

"1": { "2": "3", "4": "5" }
"a": { "b": "c", "d": "e" }

I can find VALUE if I hardcode KEYS, like:

dynamic JSONOutput = JsonConvert.DeserializeObject(HTMLOutput);
Console.WriteLine(JSONOutput["1"]["2"]); //Output is 3
Console.WriteLine(JSONOutput["1"]["4"]); //Output is 5
Console.WriteLine(JSONOutput["a"]["b"]); //Output is c
Console.WriteLine(JSONOutput["a"]["d"]); //Output is e

But how can I get that keys "1, 2, a, d" etc? Thanx for everyone

JSON is structured data. You're wanting to treat it like it's unstructured flat data? Why? What's the use case here? What problem are you trying to solve? — mason, Jun 13 '17 at 14:11
This post I wrote only last night should help you https://stackoverflow.com/questions/44511199/convert-json-string-from-camel-case-to-pascal-case-using-c-sharp/44511499#44511499 — spender, Jun 13 '17 at 14:16

score 3 · Answer 1 · answered Jun 13 '17 at 14:18

3

If you parse your JSON as follows:

var jObj = JObject.Parse(jsonString);

you can iterate its properties:

foreach(var kvp in jObj.Cast<KeyValuePair<string,JToken>>().ToList())
{
    //kvp.Key
    //kvp.Value
}

answered Jun 13 '17 at 14:18

spender

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NewtonSoft JSON Deserialize getting KEY value

1 Answers1