Json Parsing in windows phone using DataContractJsonSerializer

Before going to start parsing json. You must be add reference to both "system.runtime.serialization" and "system.servicemodel.web". And in this sample i am using http://json2csharp.com/ for simply building a C# class from JSON formated string. And its very important is to make class as similar to Json objects. Other wise we will never parse date properly.

This is time I am going to cover DataContract JSON Serialization using DataContractJsonSerializer. DataContract JSON Serialization is mostly used by Windows Communication Foundation (WCF) services, but I will try to apply this approach to Windows Phone 7 environment.

using System;

using System.Collections.Generic;

using System.Linq;

using System.Net;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Documents;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Animation;

using System.Windows.Shapes;

using Microsoft.Phone.Controls;

using System.Runtime.Serialization.Json;

using System.IO;

using System.Text;

using System.Runtime.Serialization;

namespace Json_Parsing

{

public partial class MainPage : PhoneApplicationPage

{

// Constructor

public MainPage()

{

InitializeComponent();

string jsonString = @"{

'message': 'Success',

'status': '0',

'paramss': [

{

'redirect_url': 'https //www.sandbox.paypal.com/webscr?cmd=_express-checkout&token=EC-87B5001D184562D',

'ack': '',

'transactionTimestamp': 'Thu May 12 06 45 57 EDT 2011'

{

'redirect_url': 'https //www.sandbox.paypal.com/webscr?cmd=_express-checkout&token=EC-87B5001D184562D',

'ack': 'Success',

'transactionTimestamp': 'Thu May 12 06 45 57 EDT 2011'

{

'redirect_url': 'https //www.sandbox.paypal.com/webscr?cmd=_express-checkout&token=EC-87B5001D184562D',

'ack': 'Success',

'transactionTimestamp': 'Thu May 12 06 45 57 EDT 2011'

{

'redirect_url': 'https //www.sandbox.paypal.com/webscr?cmd=_express-checkout&token=EC-87B5001D184562D',

'ack': 'Success',

'transactionTimestamp': ''

{

'redirect_url': '',

'ack': 'Fail',

'transactionTimestamp': 'Thu May 12 06 45 57 EDT 2011'

{

'redirect_url': 'https //www.sandbox.paypal.com/webscr?cmd=_express-checkout&token=EC-87B5001D184562D',

'ack': 'Success',

'transactionTimestamp': 'Thu May 12 06 45 57 EDT 2011'

}

]

}"; ;

RootObject childlist = new RootObject();

RootObject childlistonly = new RootObject();

MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(jsonString));

DataContractJsonSerializer ser = new DataContractJsonSerializer(childlist.GetType());

childlist = ser.ReadObject(ms) as RootObject;

string teststring = "";

foreach (var d in childlist.paramss)

{

teststring = teststring + "" + d.redirect_url + "\n" + "\n" + "\n";

}

MessageBox.Show("Your Url's are:\n\n" + teststring);

ms.Close();

}

public class Paramss

{

public string redirect_url { get; set; }

public string ack { get; set; }

public string transactionTimestamp { get; set; }

}

public class RootObject

{

public string message { get; set; }

public string status { get; set; }

public List<Paramss> paramss { get; set; }

}