using System;

using System.Collections;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Diagnostics;

using System.IO;

using System.Threading;

using System.Collections.ObjectModel;

using System.Reflection;

using System.Runtime.Serialization;

using System.Data;

using System.ComponentModel;

using System.Globalization;

using System.Runtime.Serialization.Formatters.Binary;

using System.Collections.Specialized;

using System.Web.Routing;

using System.Net.Mail;

using System.Runtime.InteropServices;

using System.Text.RegularExpressions;

using System.Net;

using System.Runtime.Serialization.Formatters;

using System.Threading.Tasks;

​

using Newtonsoft.Json;

using Newtonsoft.Json.Linq;

using Newtonsoft.Json.Converters;

using Newtonsoft.Json.Serialization;

using System.Web.SessionState;

​

​

// https://stackoverflow.com/questions/42939991/parse-universities-from-vk-api

​

    public class RootObject

    {

        public int Id { get; set; }

        public string Title { get; set; }

        public RootObject(int Id, string Title)

        {

            this.Id = Id;

            this.Title = Title;

        }

    }

    public class Program

    {

        public static void Main()

        {

            var url = new Uri(@"https://api.vk.com/api.php?oauth=1&method=database.getUniversities&city_id=314");

            string jsonString;

            // HttpClient is not available on dotnetfiddle, use WebClient instead.

            using (var client = new WebClient())

            {

                jsonString = client.DownloadStringAwareOfEncoding(url);

            }

            //Console.WriteLine(JToken.Parse(jsonString));

            var universityRepository  = JToken.Parse(jsonString)["response"]

                // Filter the integer value by selecting only objects

                .OfType<JObject>()

                // Deserialize each object to a RootObject

                .Select(o => o.ToObject<RootObject>())

                // Return in a List<RootObject>

                .ToList();

            var listOfUniversities = universityRepository

                .Select(u => u.Title)

                .ToList();

​

            Console.WriteLine(JsonConvert.SerializeObject(listOfUniversities, Formatting.Indented));

        }

    }

​

    public static class WebUtils

    {

        public static Encoding GetEncodingFrom(

            NameValueCollection responseHeaders,

            Encoding defaultEncoding = null)

        {

            if(responseHeaders == null)

                throw new ArgumentNullException("responseHeaders");

            //Note that key lookup is case-insensitive

            var contentType = responseHeaders["Content-Type"];

            if(contentType == null)

                return defaultEncoding;

            var contentTypeParts = contentType.Split(';');

            if(contentTypeParts.Length <= 1)

                return defaultEncoding;

            var charsetPart =

                contentTypeParts.Skip(1).FirstOrDefault(

                    p => p.TrimStart().StartsWith("charset", StringComparison.InvariantCultureIgnoreCase));

            if(charsetPart == null)

                return defaultEncoding;

            var charsetPartParts = charsetPart.Split('=');

            if(charsetPartParts.Length != 2)

                return defaultEncoding;

            var charsetName = charsetPartParts[1].Trim();

            if(charsetName == "")

                return defaultEncoding;

            return Encoding.GetEncoding(charsetName);

        }

    }

​

    public static class WebClientExtensions

    {

        // Taken from http://stackoverflow.com/questions/4716470/webclient-downloadstring-returns-string-with-peculiar-characters

        public static string DownloadStringAwareOfEncoding(this WebClient webClient, Uri uri)

        {

            var rawData = webClient.DownloadData(uri);

            var encoding = WebUtils.GetEncodingFrom(webClient.ResponseHeaders, Encoding.UTF8);

            return encoding.GetString(rawData);

        }

    }