How to iterate through pure JSON Array like the following, in C# Newtonsoft?
[
78293270,
847744,
32816430
]
or,
["aa", "bb", "cc"]
All the existing answers that I found on SO are in KeyValuePair format, not this pure JSON Array format. Thx.
JArray array = JsonConvert.DeserializeObject<JArray>(json);
foreach(JObject item in array)
{
// now what?
}
Parse the string using static Parse method of JArray. This method returns a JArray from a string that contains JSON. Please read it about here.
var jArray = JArray.Parse(arrStr);
foreach (var obj in jArray)
{
Console.WriteLine(obj);
}
A simple program for your inputs which you can run to validate at dotnetfiddle.
using System;
using Newtonsoft.Json.Linq;
public class Program
{
public static void Main()
{
var arrStr = "[78293270, 847744, 32816430]";
var jArray = JArray.Parse(arrStr);
foreach (var obj in jArray)
{
Console.WriteLine(obj);
}
var aStr = "[\"aa\", \"bb\", \"cc\"]";
var jArray1 = JArray.Parse(aStr);
foreach (var obj in jArray1)
{
Console.WriteLine(obj);
}
}
}
The output of above code is
78293270
847744
32816430
aa
bb
cc
Console.WriteLine(obj)? I do need that result in string format, not output to console. I tried string js = JsonConvert.SerializeObject(obj); but got the error of "Unable to cast object of type 'Newtonsoft.Json.Linq.JValue' to type 'Newtonsoft.Json.Linq.JObject'"
var str = obj.Value<string>(); You don't need to serialize the JArray again.Value<int>() or Value<string>(). Thx.Type then make the library method as Generic so that caller will pass the appropriate type. And then in Value method you can pass the same T.Do you mean "how to get values from iterated JObject?
foreach(var item in array) // var is JToken, can be cast to JObject
{
int number = item.Value<int>();
Console.WriteLine(number);
}
