using System;

using Newtonsoft.Json.Linq;

public class Program

{

    public static void Main()

    {

        string json = @"{

                ""Issuer"" : ""LOCAL AUTHORITY"",

                ""OriginalIssuer"" : ""LOCAL AUTHORITY"",

                ""Type"" : ""http://my.org/ws/2015/01/identity/claims/mytype"",

                ""Value"" : ""myvalue"",

                ""ValueType"" : ""http://www.w3.org/2001/XMLSchema#string""

            }";

        JObject obj = JObject.Parse(json);

        //works

        foreach (var x in obj)

        {

            string name = x.Key;

            JToken value = x.Value;

            Console.WriteLine(name);

        }

        //fails

        foreach (JProperty x in obj) { // if 'obj' is a JObject

            string name = x.Name;

            JToken value = x.Value;

        }

    }

}

​

​