Add a field into JSON array C#

Question

Here is my json Array, i want to add a new field in array but i dont know how to loop it

{
    "data": {
        "pasca": [
            {
                "code": "PDI1231",
                "name": "Water Bottle",
                "status": 1,
                "price": 2500,
                "type": "plastic"
            },
            {
                "code": "PDI9999",
                "name": "Soccel Ball",
                "status": 1,
                "price": 99123,
                "type": "plastic"
            }
        ]
    }
}

i want to add a new field in pasca array like this

"pasca": [
            {
                "code": "PDI1231",
                "name": "Water Bottle",
                "status": 1,
                "price": 2500,
                "type": "plastic",
                "new_field_1": "new value_1",
                "new_field_2": "new value_2"
            }
        ]

1) Deserialize the JSON (even into a JSON.NET JObject, for example), 2) Add the new array items. 3) Serialize the JSON. — ProgrammingLlama
– ProgrammingLlama, Commented Jul 28, 2020 at 7:49

Guru Stron · Accepted Answer · 2020-07-28 07:52:10Z

1

If you are using Newtosoft's Json.NET it can be done as simple as that:

var jObj = JsonConvert.DeserializeObject<JObject>(json);
foreach(var el in jObj["data"]["pasca"])
{
    el["new_field_1"] = "new value_1";
}

answered Jul 28, 2020 at 7:52

Guru Stron

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2 Comments

M Andre Juliansyah Over a year ago

thank you very much, where do you get that documentation for looping like that ?

Guru Stron Over a year ago

@MAndreJuliansyah Was glad to help! Newtonsoft has pretty extensive documentation.

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