string To JSON

.NET

using System;
using System.Web.Script.Serialization;

namespace JsonDeserializationExample
{
    class Program
    {
        static void Main(string[] args)
        {
            decimal volumeWidth;

            string volumeInfo = "{\"width\": 10, \"length\": 10, \"height\": 10}";
            System.Web.Script.Serialization.JavaScriptSerializer serializer = new System.Web.Script.Serialization.JavaScriptSerializer();
            var volumeJson = serializer.Deserialize<object>(volumeInfo);

           if(volumeJson is IDictionary<string, object> volumeDictionary)
            {
                if (volumeDictionary.ContainsKey("width")) {
                    decimal.TryParse(string.Format("{0}", volumeDictionary["width"]), out volumeWidth);
                }
            }
        }
    }
}

 

.Core

using System.Text.Json;

// Your string
string jsonString = "{\"name\":\"John\",\"age\":30,\"city\":\"New York\"}";

// Deserialize the JSON string
var jsonObject = JsonSerializer.Deserialize<JsonElement>(jsonString);