Question 109840 in Json Question posted in
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Can someone help me use this Json file in c#?

I have been trying to display contents of a json file in a textbox for the past 6 hours and got nowhere.
here’s the c# code

        private thruster Getthruster()
        {
            string text = File.ReadAllText(@"./thrusters.json");
            List<thruster> test = JsonConvert.DeserializeObject<List<thruster>>(text);
        
            textBox1.Text = text;
        
            foreach (var item in test)
            {
                textBox1.Text = item.type;
            }
            return Getthruster();
        }


        public class thruster
        {
            public string id { get; set; }
            public string type { get; set; }
            public string placement { get; set; }
        }

{
  "thruster": [
    {
      "id": 1,
      "type": "tunnel",
      "placement": "bow"
    },
    {
      "id": 2,
      "type": "tunnel",
      "placement": "bow"
    },
    {
      "id": 3,
      "type": "azimuth",
      "placement": "bow"
    },
    {
      "id": 5,
      "type": "azimuth",
      "placement": "stern"
    },
    {
      "id": 5,
      "type": "tunnel",
      "placement": "stern"
    },
    {
      "id": 6,
      "type": "azimuth_propulsion"
    },
    {
      "id": 7,
      "type": "azimuth_propulsion"
    }
  ]
}
Tags:

2

Answers


  1. 0

    To start, you are running into a StackOverflowException since you are calling the same method (Getthruster()) inside the same method without any exit condition.

    After this, your json file seems to be incorrect. You have there a Dictionary<string,thruster[]> and not a thruster[] (Or List).

    Your json for a thruster[] or List<thruster> should be something like:

    [
  {
    "id": "1",
    "type": "t",
    "placement": "top"
  },
  {
    "id": "2",
    "type": "t",
    "placement": "top"
  }
]
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  2. 0

    you have an object inside of a json string, but you try to serialize it as it is an array. You can use this code that deserializes an array inside of your json

     List<thruster> test = JObject.Parse(text)["thruster"].ToObject<List<thruster>>();
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