Прочитать объект JSON

Question

Я пытаюсь прочитать объект JSON с использованием JavaScriptSerializer. В настоящее время я не могу прочитать объект JSON с моим кодом.

ниже мой объект JSON.

{"data":[{"id":17,"name":"RedBug Project","can_modify":true,"description":"","start_date":"1899-01-01T00:00:00Z","due_date":"1899-01-01T00:00:00Z","is_active":true,"parent":{"id":0}},{"id":14,"name":"RedRock","can_modify":true,"description":"","start_date":"1899-01-01T00:00:00Z","due_date":"1899-01-01T00:00:00Z","is_active":true,"parent":{"id":0},"children":[{"id":16,"name":"WEB","can_modify":true,"description":"","start_date":"1899-01-01T00:00:00Z","due_date":"1899-01-01T00:00:00Z","is_active":true,"parent":{"id":14}}]}]} 

Метод читать JSON

public Dictionary<string, string> ReadJSONProject(string jsObject) 
     { 

      var json = jsObject; 
      JavaScriptSerializer serializer = new JavaScriptSerializer(); 
      dynamic jsonObject = serializer.Deserialize<dynamic>(json); 

      Dictionary<string, string> dic = new Dictionary<string, string>(); 

      foreach (var item in jsonObject) 
      { 
       var a = item; 
       dic.Add(item["id"], item["name"]); 

      } 

      return dic; 
     } 

мне нужно прочитать ниже значения словаря

"id":17,"name":"RedBug Project" 

"id":14,"name":"RedRock" 

Answer 1

namespace WebApplication2 
{ 
    public partial class WebForm3 : System.Web.UI.Page 
    { 
     protected void Page_Load(object sender, EventArgs e) 
     { 
      string s = @"{""data"":[{""id"":17,""name"":""RedBug Project"",""can_modify"":true,""description"":"""",""start_date"":""1899-01-01T00:00:00Z"",""due_date"":""1899-01-01T00:00:00Z"",""is_active"":true,""parent"":{""id"":0}},{""id"":14,""name"":""RedRock"",""can_modify"":true,""description"":"""",""start_date"":""1899-01-01T00:00:00Z"",""due_date"":""1899-01-01T00:00:00Z"",""is_active"":true,""parent"":{""id"":0},""children"":[{""id"":16,""name"":""WEB"",""can_modify"":true,""description"":"""",""start_date"":""1899-01-01T00:00:00Z"",""due_date"":""1899-01-01T00:00:00Z"",""is_active"":true,""parent"":{""id"":14}}]}]}"; 
      ReadJSONProject(s); 
     } 

     protected Dictionary<string, string> ReadJSONProject(string jsObject) 
     { 

      var json = jsObject; 
      JavaScriptSerializer serializer = new JavaScriptSerializer(); 
      dynamic jsonObject = serializer.Deserialize<dynamic>(json); 

      Dictionary<string, string> dic = new Dictionary<string, string>(); 

      var data = jsonObject["data"]; 

      foreach (var record in data) 
      { 
       var id = ((int)record["id"]).ToString(); 
       var name = record["name"] as string; 

       dic.Add(id, name); 

      } 

      return dic; 
     } 
    } 
} 

Answer 2

см ниже примеров и изменить в соответствии с вашими потребностями.

using System; 
using System.Collections.Generic; 
using System.Data; 
using System.Data.Objects; 
using System.Data.SqlClient; 
using System.Globalization; 
using System.IO; 
using System.Linq; 
using System.Runtime.Serialization; 
using System.Text; 
using System.Runtime.Serialization.Json; 
using System.Threading; 
using System.Xml; 
using ConsoleDemo.Controller; 
using ConsoleDemo.Model; 
using Microsoft.Practices.Unity; 


namespace ConsoleDemo 
{ 
    class Program 
    { 
     static void Main(string[] args) 
     { 
      var data = @"{""Root"": {""data"": [{""CardName"": ""card1"",""functions"": [{""State"": ""OPEN""},{""State"": ""INHERENT""}]},{""CardName"": ""card2"",""functions"": [{""State"": ""CLOSED""},{""State"": ""INHERENT""}]}]}"; 
      RootClass dynObj = JsonHelper.JsonDeserialize<RootClass>(data); //Get the object 
      Console.ReadKey(); 
     } 
    } 

    [DataContract] 
    public class RootClass 
    { 
     [DataMember(Name = "Root")] 
     public Data Root { get; set; } 
    } 

    [DataContract] 
    public class Data 
    { 
     [DataMember(Name = "data")] 
     public List<Card> data { get; set; } 
    } 

    [DataContract] 
    public class Card 
    { 
     [DataMember(Name = "CardName")] 
     public string CardName { get; set; } 

     [DataMember(Name = "functions")] 
     public List<Function> Functions { get; set; } 
    } 

    [DataContract] 
    public class Function 
    { 

     [DataMember(Name = "State")] 
     public string State { get; set; } 
    } 

    public class JsonHelper 
    { 
     /// <summary> 
     /// JSON Serialization 
     /// </summary> 
     public static string JsonSerializer<T>(T t) 
     { 
      var ser = new DataContractJsonSerializer(typeof(T)); 
      var ms = new MemoryStream(); 
      ser.WriteObject(ms, t); 
      var jsonString = Encoding.UTF8.GetString(ms.ToArray()); 
      ms.Close(); 
      return jsonString; 
     } 
     /// <summary> 
     /// JSON Deserialization 
     /// </summary> 
     public static T JsonDeserialize<T>(string jsonString) 
     { 
      var ser = new DataContractJsonSerializer(typeof(T)); 
      var ms = new MemoryStream(Encoding.UTF8.GetBytes(jsonString)); 
      var obj = (T)ser.ReadObject(ms); 
      return obj; 
     } 
    } 

} 

Answer 3

В Еогеасп-петле извлечения члена «данных», который является массивом. Вам нужно перебрать элементы этого массива для доступа к «id» и «name».

Answer 4

Вот моя реализация без использования динамики BTW вы можете использовать http://json2csharp.com/ для преобразования сложной JSON в C# классы легко

public class Item 
{ 
    public string id { get; set; } 
    public string name { get; set; } 
    public bool can_modify { get; set; } 
    public string description { get; set; } 
    public string start_date { get; set; } 
    public string due_date { get; set; } 
    public bool is_active { get; set; } 
    public Item parent { get; set; } 
    public List<Item> children { get; set; } 
} 

public class RootObject 
{ 
    public List<Item> data { get; set; } 
} 

public Dictionary<string, string> ReadJSONProject(string jsObject) 
{ 

    var json = jsObject; 
    JavaScriptSerializer serializer = new JavaScriptSerializer(); 
    var jsonObject = serializer.Deserialize<RootObject>(json); 
    Dictionary<string, string> dic = new Dictionary<string, string>(); 

    foreach (var item in jsonObject.data) 
    { 
     dic.Add(item.id, item.name); 
    } 

    return dic; 
}