Tukukkk

I am working on JArray in .NET CORE and I am getting random structure of this one specific key, hence getting different error. I need to know if JArray has specific child Array and if Child JArray have specific key pair (NOT VALUE) i.e. value{ "Id":""} one of error is following;

 Accessed JArray values with invalid key value: "id". Int32 array index expected.

  at Newtonsoft.Json.Linq.JArray.get_Item(Object key) at 

the standard structure I am expecting is as following;

{[value, [

{

  "id": "7ef82869-e235-69a2-f81e-3a9664e89bc4",

  "value": ""

 }

]]}

sometime I get as, meaning throw null error where I am trying to map Id.

 {[value, [

  {

   "value": ""

  }

 ]]}

and some Time I don't get this property at all

I am trying following check to cover all scenario but Its not really working.

code

 if (answerItems.value != null && answerItems.value.HasValues && answerItems.value["id"]!=null)

                {

I received some constructive criticism on the brevity of my answer so I figured I would elaborate to help you through your issue.

First, let's take a look at your JSON. In short, it isn't valid. In fact, it isn't even close to valid JSON. I can only assume you meant something like this:

{

   "values" : [{ "id" : "7ef82869-e235-69a2-f81e-3a9664e89bc4", "value": "" }]

}

I would suggest that anytime you are trying to parse data like this and you run into issues you start trouble shooting by validating the data itself. I like to use JSONLint for this.

Next, it is difficult from your example code to tell exactly what you are trying to do. I can only guess that you are attempting to use the dynamic object method of parsing and working with the data. A downside to this method is it is difficult to validate your data before you work with it.

Instead, I would use the Newtonsoft.Json.Linq.JObject.Parse method. This gives you some tools for working with and validating the information. Below I have included a very simple example of how this would be done.

using System;

using Newtonsoft.Json.Linq;



public class Program

{

    public static void Main()

    {

        string json = "{ "values": [{ "id": "7ef82869-e235-69a2-f81e-3a9664e89bc4",   "value": "" }] }";

        JObject obj = JObject.Parse(json);



        // Check to see if we got our value array

        if (obj.ContainsKey("values")) {

            JArray values = (JArray)obj["values"];



            // Do we have any values in our array?

            if (values.Count > 0) {

                JObject firstItem = (JObject)values[0];



                // We check to see if we have an ID parameter

                if (firstItem.ContainsKey("id")) {

                    Console.WriteLine(firstItem["id"]);

                }

            }

        }

    }

}

As I mentioned in my original post, I would strongly recommend reviewing the Newtonsoft.Json documentation.