Q:

How to parse my json string in C#(4.0)using Newtonsoft.Json package?

I am new to JSON.In my asp.net application i want to parse the json string.So, i have used Newtonsoft.Json package for reading and writing json data.Now, i can able to parse the simple json data.But now i have received some complex json data for parsing.So, i little bit struck on it.
This is JSON Data:
{
    quizlist: [
     {
            QUIZ: {
                'QPROP': [
                    {
                        'name': 'FB',
                        'intro': '',
                        'timeopen': '1347871440',
                        'timeclose': '1355733840',
                        'timelimit': '0',
                        'noofques': '5',
                        'QUESTION': {
                            'QUEPROP': [
                                {
                                    'questiontext': 'Scienceisbasedont',
                                    'penalty': '0.3333333',
                                    'qtype': 'shortanswer',
                                    'answer': 'cause-and-effect',
                                    'mark'  : '5',
                                    'hint': ''
                                },
                                {
                                    'questiontext': 'otherscientistsevaluateit',
                                    'penalty': '0.3333333',
                                    'qtype': 'shortanswer',
                                    'answer': 'Peerreview',
                                    'mark'  : '5',
                                    'hint': ''
                                },
                                {
                                    'questiontext': 'Watchingavariety',
                                    'penalty': '0.3333333',
                                    'qtype': 'shortanswer',
                                    'answer': 'inductive',
                                    'mark'  : '5',
                                    'hint': ''
                                },
                                {
                                    'questiontext': 'coveriesorideas',
                                    'penalty': '0.3333333',
                                    'qtype': 'shortanswer',
                                    'answer': 'paradigmshift',
                                    'mark'  : '5',
                                    'hint': ''
                                },
                                {
                                    'questiontext': 'proportions',
                                    'penalty': '0.3333333',
                                    'qtype': 'shortanswer',
                                    'answer': 'fixed',
                                    'mark'  : '5',
                                    'hint': ''
                                }
                            ]
                        }
                    }
                ]
            }
        }
     ]
}

This is my C# Code :
dynamic dynObj = JsonConvert.DeserializeObject(jsonString);

            foreach (var data in dynObj.quizlist)
            {
                foreach (var data1 in data.QUIZ.QPROP)
                {
                    Response.Write("Name" + ":" + data1.name + "<br>");
                    Response.Write("Intro" + ":" + data1.intro + "<br>");
                    Response.Write("Timeopen" + ":" + data1.timeopen + "<br>");
                    Response.Write("Timeclose" + ":" + data1.timeclose + "<br>");
                    Response.Write("Timelimit" + ":" + data1.timelimit + "<br>");
                    Response.Write("Noofques" + ":" + data1.noofques + "<br>");
                }
              }

I can able to parse until noofques object in QPROP array objects.Now have to parse data.QUIZ.QPROP.QUESTION.QUEPROP array objects also...
But i failed to parse fully...
Please guide me to get out of this issue...

A:

foreach (var data in dynObj.quizlist)
{
    foreach (var data1 in data.QUIZ.QPROP)
    {
        Response.Write("Name" + ":" + data1.name + "<br>");
        Response.Write("Intro" + ":" + data1.intro + "<br>");
        Response.Write("Timeopen" + ":" + data1.timeopen + "<br>");
        Response.Write("Timeclose" + ":" + data1.timeclose + "<br>");
        Response.Write("Timelimit" + ":" + data1.timelimit + "<br>");
        Response.Write("Noofques" + ":" + data1.noofques + "<br>");

        foreach (var queprop in data1.QUESTION.QUEPROP)
        {
            Response.Write("Questiontext" + ":" + queprop.questiontext  + "<br>");
            Response.Write("Mark" + ":" + queprop.mark  + "<br>");
        }
    }
}

A:

You can use this tool to create appropriate c# classes:
http://jsonclassgenerator.codeplex.com/
and when you will have classes created you can simply convert string to object:
    public static T ParseJsonObject<T>(string json) where T : class, new()
    {
        JObject jobject = JObject.Parse(json);
        return JsonConvert.DeserializeObject<T>(jobject.ToString());
    }

Here that classes: http://ge.tt/2KGtbPT/v/0?c
Just fix namespaces.

A:

You could create your own class of type Quiz and then deserialize with strong type:
Example:

quizresult = JsonConvert.DeserializeObject<Quiz>(args.Message,
                 new JsonSerializerSettings
                 {
                     Error = delegate(object sender1, ErrorEventArgs args1)
                     {
                         errors.Add(args1.ErrorContext.Error.Message);
                         args1.ErrorContext.Handled = true;
                     }
                 });

And you could also apply a schema validation.
http://james.newtonking.com/projects/json/help/index.html

