using System;

using Newtonsoft.Json.Linq;

public class Program

{

    public static void Main()

    {

        JObject Job = JObject.Parse(@"{ ""JOBID"": ""1234"" }");

​

        int JobID = 0;

        if (Job["JOBID"] != null)

        {

            JobID = Convert.ToInt32(Job["JOBID"]); // here I am getting the error

        }

​

        Console.WriteLine(JobID);

    }

}