.NET 4.x Json десериализация - C#

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Формулировка задачи:

помогите десириализовать json туплю не имоверно но не понимаю как это работает вот пример входной строки
Листинг программы 
  1. {
  2.   "list": [
  3.     {
  4.       "photo": {
  5.         "id": 3868245,
  6.         "url": "/photo/3868245",
  7.         "subject": "chii",
  8.         "sq150_url": "http://image02.worldcosplay.net/uploads/sq150/31047/kvdsoxmlwiefrowoyjrweblyezhihmkwdaohpakj-3000.jpg",
  9.         "sq300_url": "http://image02.worldcosplay.net/uploads/sq300/31047/kvdsoxmlwiefrowoyjrweblyezhihmkwdaohpakj-3000.jpg",
  10.         "does_like": false,
  11.         "is_owner": false,
  12.         "viewable": true
  13.       }
  14.     },
  15.     {
  16.       "photo": {
  17.         "id": 3868235,
  18.         "url": "/photo/3868235",
  19.         "subject": "Jem",
  20.         "sq150_url": "http://image02.worldcosplay.net/uploads/sq150/31047/yndvmraohwuvebbanxjegoblrrdvoirwfjpmljdm-3000.jpg",
  21.         "sq300_url": "http://image02.worldcosplay.net/uploads/sq300/31047/yndvmraohwuvebbanxjegoblrrdvoirwfjpmljdm-3000.jpg",
  22.         "does_like": false,
  23.         "is_owner": false,
  24.         "viewable": true
  25.       }
  26.     },
  27.     {
  28.       "photo": {
  29.         "id": 3868158,
  30.         "url": "/photo/3868158",
  31.         "subject": "junko enoshima yukata",
  32.         "sq150_url": "http://image01.worldcosplay.net/uploads/sq150/31047/oepwguizadfcqykjlvvwrbnziaqcovweshtgjmlg-3000.jpg",
  33.         "sq300_url": "http://image01.worldcosplay.net/uploads/sq300/31047/oepwguizadfcqykjlvvwrbnziaqcovweshtgjmlg-3000.jpg",
  34.         "does_like": false,
  35.         "is_owner": false,
  36.         "viewable": true
  37.       }
  38.     },
  39.     {
  40.       "photo": {
  41.         "id": 3868097,
  42.         "url": "/photo/3868097",
  43.         "subject": "sweet lolita",
  44.         "sq150_url": "http://image02.worldcosplay.net/uploads/sq150/31047/vizfjmpzakddidrstqjswxkaiyqdhhkxkmwzfyzr-3000.jpg",
  45.         "sq300_url": "http://image02.worldcosplay.net/uploads/sq300/31047/vizfjmpzakddidrstqjswxkaiyqdhhkxkmwzfyzr-3000.jpg",
  46.         "does_like": false,
  47.         "is_owner": false,
  48.         "viewable": true
  49.       }
  50.     },
  51.     {
  52.       "photo": {
  53.         "id": 3868042,
  54.         "url": "/photo/3868042",
  55.         "subject": "arachne",
  56.         "sq150_url": "http://image01.worldcosplay.net/uploads/sq150/31047/rsluwmvzqizoolxmbyjoqexkxksckldazkalockr-3000.jpg",
  57.         "sq300_url": "http://image01.worldcosplay.net/uploads/sq300/31047/rsluwmvzqizoolxmbyjoqexkxksckldazkalockr-3000.jpg",
  58.         "does_like": false,
  59.         "is_owner": false,
  60.         "viewable": true
  61.       }
  62.     },
  63.     {
  64.       "photo": {
  65.         "id": 3867986,
  66.         "url": "/photo/3867986",
  67.         "subject": "luka megurine ",
  68.         "sq150_url": "http://image01.worldcosplay.net/uploads/sq150/31047/mdkodmeyyhpycsuxlxgifiigznkkzhgurtcdkgds-3000.jpg",
  69.         "sq300_url": "http://image01.worldcosplay.net/uploads/sq300/31047/mdkodmeyyhpycsuxlxgifiigznkkzhgurtcdkgds-3000.jpg",
  70.         "does_like": false,
  71.         "is_owner": false,
  72.         "viewable": true
  73.       }
  74.     },
  75.     {
  76.       "photo": {
  77.         "id": 3867890,
  78.         "url": "/photo/3867890",
  79.         "subject": "luka megurine ",
  80.         "sq150_url": "http://image01.worldcosplay.net/uploads/sq150/31047/djryctrkjvyyeqmoiyofynolvwhkjnqddkyftvmx-3000.jpg",
  81.         "sq300_url": "http://image01.worldcosplay.net/uploads/sq300/31047/djryctrkjvyyeqmoiyofynolvwhkjnqddkyftvmx-3000.jpg",
  82.         "does_like": false,
  83.         "is_owner": false,
  84.         "viewable": true
  85.       }
  86.     },
  87.     {
  88.       "photo": {
  89.         "id": 3866656,
  90.         "url": "/photo/3866656",
  91.         "subject": "steampunk ",
  92.         "sq150_url": "http://image01.worldcosplay.net/uploads/sq150/31047/ghiibmreatfvjvkioclnlwsrgqgrojeggfmmirqr-3000.jpg",
  93.         "sq300_url": "http://image01.worldcosplay.net/uploads/sq300/31047/ghiibmreatfvjvkioclnlwsrgqgrojeggfmmirqr-3000.jpg",
  94.         "does_like": false,
  95.         "is_owner": false,
  96.         "viewable": true
  97.       }
  98.     },
  99.     {
  100.       "photo": {
  101.         "id": 3866620,
  102.         "url": "/photo/3866620",
  103.         "subject": "nana",
  104.         "sq150_url": "http://image01.worldcosplay.net/uploads/sq150/31047/jpwadoakdwtoyoosidladbcgrbvpziborideozvn-3000.jpg",
  105.         "sq300_url": "http://image01.worldcosplay.net/uploads/sq300/31047/jpwadoakdwtoyoosidladbcgrbvpziborideozvn-3000.jpg",
  106.         "does_like": false,
  107.         "is_owner": false,
  108.         "viewable": true
  109.       }
  110.     },
  111.     {
  112.       "photo": {
  113.         "id": 3866586,
  114.         "url": "/photo/3866586",
  115.         "subject": "hello kitty",
  116.         "sq150_url": "http://image01.worldcosplay.net/uploads/sq150/31047/wghvqwvodzlldhpljprbmsnighxwhotzsbomohgj-3000.jpg",
  117.         "sq300_url": "http://image01.worldcosplay.net/uploads/sq300/31047/wghvqwvodzlldhpljprbmsnighxwhotzsbomohgj-3000.jpg",
  118.         "does_like": false,
  119.         "is_owner": false,
  120.         "viewable": true
  121.       }
  122.     },
  123.     {
  124.       "photo": {
  125.         "id": 3866571,
  126.         "url": "/photo/3866571",
  127.         "subject": "luki",
  128.         "sq150_url": "http://image02.worldcosplay.net/uploads/sq150/31047/iucbtkdhasijpwpaijdbnjcjqzjgyvtxxvoclvas-3000.jpg",
  129.         "sq300_url": "http://image02.worldcosplay.net/uploads/sq300/31047/iucbtkdhasijpwpaijdbnjcjqzjgyvtxxvoclvas-3000.jpg",
  130.         "does_like": false,
  131.         "is_owner": false,
  132.         "viewable": true
  133.       }
  134.     },
  135.     {
  136.       "photo": {
  137.         "id": 3866548,
  138.         "url": "/photo/3866548",
  139.         "subject": "asuka",
  140.         "sq150_url": "http://image01.worldcosplay.net/uploads/sq150/31047/sxogffyvidhtdatgewsipvcpyxevacmaaixjfgow-3000.jpg",
  141.         "sq300_url": "http://image01.worldcosplay.net/uploads/sq300/31047/sxogffyvidhtdatgewsipvcpyxevacmaaixjfgow-3000.jpg",
  142.         "does_like": false,
  143.         "is_owner": false,
  144.         "viewable": true
  145.       }
  146.     },
  147.     {
  148.       "photo": {
  149.         "id": 3866114,
  150.         "url": "/photo/3866114",
  151.         "subject": "stocking ",
  152.         "sq150_url": "http://image01.worldcosplay.net/uploads/sq150/31047/zdphvhnhznfcwdzgcqklczswiojfyfomeozmxkvh-3000.jpg",
  153.         "sq300_url": "http://image01.worldcosplay.net/uploads/sq300/31047/zdphvhnhznfcwdzgcqklczswiojfyfomeozmxkvh-3000.jpg",
  154.         "does_like": false,
  155.         "is_owner": false,
  156.         "viewable": true
  157.       }
  158.     },
  159.     {
  160.       "photo": {
  161.         "id": 3865932,
  162.         "url": "/photo/3865932",
  163.         "subject": "boa",
  164.         "sq150_url": "http://image01.worldcosplay.net/uploads/sq150/31047/klcitcxmqscibnotdbjolhavlpfmitpxlfybszwb-3000.jpg",
  165.         "sq300_url": "http://image01.worldcosplay.net/uploads/sq300/31047/klcitcxmqscibnotdbjolhavlpfmitpxlfybszwb-3000.jpg",
  166.         "does_like": false,
  167.         "is_owner": false,
  168.         "viewable": true
  169.       }
  170.     },
  171.     {
  172.       "photo": {
  173.         "id": 3865784,
  174.         "url": "/photo/3865784",
  175.         "subject": "s sailor chibiusa S S moon",
  176.         "sq150_url": "http://image01.worldcosplay.net/uploads/sq150/31047/kdrhkgotxkljcerbqaaqelximsxjgfdobbmaqcez-3000.jpg",
  177.         "sq300_url": "http://image01.worldcosplay.net/uploads/sq300/31047/kdrhkgotxkljcerbqaaqelximsxjgfdobbmaqcez-3000.jpg",
  178.         "does_like": false,
  179.         "is_owner": false,
  180.         "viewable": true
  181.       }
  182.     },
  183.     {
  184.       "photo": {
  185.         "id": 3865707,
  186.         "url": "/photo/3865707",
  187.         "subject": "madoka kaname",
  188.         "sq150_url": "http://image02.worldcosplay.net/uploads/sq150/31047/xfquqdmftpnzwvukqnvatyybunmeejloeuolpeei-3000.jpg",
  189.         "sq300_url": "http://image02.worldcosplay.net/uploads/sq300/31047/xfquqdmftpnzwvukqnvatyybunmeejloeuolpeei-3000.jpg",
  190.         "does_like": false,
  191.         "is_owner": false,
  192.         "viewable": true
  193.       }
  194.     }
  195.   ],
  196.   "pager": {
  197.     "previous_page": 1,
  198.     "current_page": 2,
  199.     "next_page": 3
  200.   },
  201.   "has_error": 0
  202. }

Решение задачи: «.NET 4.x Json десериализация»

textual
Листинг программы 
  1. using System;
  2. using System.IO;
  3. using System.Linq;
  4. using System.Web.Script.Serialization;
  5.  
  6. internal sealed class Program {
  7.   static void Main() {
  8.     String json = File.ReadAllText(@"C:\source.json");
  9.     
  10.     var des = new JavaScriptSerializer().Deserialize<dynamic>(json);
  11.     Console.WriteLine(des["list"][0]["photo"]["url"]);
  12.   }
  13. }

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