Json.net反序列化錯誤

Question

我解析一個JSON字符串變成一個ObservableCollection，但是當我做Json.net拋出這個錯誤：

Newtonsoft.Json.JsonSerializationException: Cannot deserialize the current JSON array (e.g. [1,2,3]) into type 'MVPTracker.ViewModels.DataModels+League+Position' because the type requires a JSON object (e.g. {"name":"value"}) to deserialize correctly. To fix this error either change the JSON to a JSON object (e.g. {"name":"value"}) or change the deserialized type to an array or a type that implements a collection interface (e.g. ICollection, IList) like List that can be deserialized from a JSON array. JsonArrayAttribute can also be added to the type to force it to deserialize from a JSON array.

我的DataModel，視圖模型和加載低於：

的DataModel：

public class League 
    { 
     public string name { get; set; } 
     public string code { get; set; } 
     public string imageUrl { get; set; } 
     public Position positions = new Position(); 

     public class Position 
     { 
      public string name { get; set; } 
      public string code { get; set; } 
      public string imageUrl { get; set; } 
      public string[] statistics { get; set; } 
     } 
    } 

加載/視圖模型：

private ObservableCollection<DataModels.League> _leagues = new ObservableCollection<DataModels.League>(); 
    public ObservableCollection<DataModels.League> Leagues 
    { 
     get { return _leagues; } 
     set { _leagues = value; NotifyPropertyChanged("Leagues"); } 
    } 

    public async void Load() 
    { 
     string leaguesJSON = await ServerConnector.LoadOrganizations(); 

     Leagues.Clear(); 
     Leagues = JsonConvert.DeserializeObject<ObservableCollection<DataModels.League>>(leaguesJSON); 
    } 

我試着設置ObservableCollection的IList/ICollection的無濟於事。

編輯：這是我解析JSON：http://pastebin.com/QVnikitV

Answer 1

在C＃代碼你positions字段表示Position類型的單個對象。您的JSON對象的positions字段表示一個數組。

所以你的C＃代碼將需要更改到一個數組匹配：

public Position[] positions { get; set; }