C# Remove object from JSON with nested property [duplicate]

Question

I have this JSON, and I want to delete "delta" section with all nested property. I already use JObject.Remove("delta") but I have this error:

Cannot add or remove items from Newtonsoft.Json.Linq.JProperty

JSON

{
  "state": {
    "desired": {
      "optionals": {
        "Variant": "XXXX",
        "Vehicle": {
          "COC00": "AAAA",
          "D0000": "BBBB",
          "D0600": "CCCC"
        }
      }
    },
    "delta": {
      "optionals": {
        "Variant": "XXXX",
        "Vehicle": {
          "COC00": "AAAA",
          "D0000": "BBBB",
          "D0600": "CCCC"
          "D2000": "DDDD",
        }
      }
    }
  },
  "timestamp": 1700154568
}

Does this answer your question? Remove Node From JSON dynamically in C# or this perhaps? JSON.NET how to remove nodes — Jawad
– Jawad, Commented Nov 16, 2023 at 17:25
The above solution is verbose but performant. If this is not a bottleneck you can just deserialize this json to the object with desired shape then serialize it to json. — Hamlet Hakobyan
– Hamlet Hakobyan, Commented Nov 16, 2023 at 17:31
I think you're calling Remove on the wrong object. The message says you are calling Remove on an instance of a JProperty. I would expect you are using a JToken as an interface, but probably you are calling stateProperty.Remove("delta"). But you would need to call something like stateProperty.Value.Remove("delta") (I'm not sure about the exact API) — Alberto Chiesa
– Alberto Chiesa, Commented Nov 16, 2023 at 17:39

Pavan Chandaka · Accepted Answer · 2023-11-16 17:42:45Z

2

Use selectToken and then remove the property.

    JObject jo = JObject.Parse(json);
    JObject header = (JObject)jo.SelectToken("state");
    header.Property("delta").Remove();
    json = jo.ToString();

answered Nov 16, 2023 at 17:42

Pavan Chandaka

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