反序列化JSON與嵌套選擇

Question

我的問題POCO類是什麼，我都問here

我只是想JSON數據deserilize到C＃定製POCO類，如下圖所示，在這裏延續是我已經這樣做了遠;

public static UserItem DownloadJSONString(string urlJson) 
{ 
    var root = JsonConvert.DeserializeObject<RootObject>(json); 
    var userItem = root.results 
         .Select(i => new UserItem 
         { 
          id = i.id, 
          name = i.name, 
          title = i.title, 

          //tried using `Any` but does not seems work... 
          audience = (from _tag in root.results.SelectMany(x => x.tags) //<<< 
             select new Audience { id = _tag.Id .....}).ToList() 

         }).ToList(); 

     return userItem;   
} 

這裏是我的JSON對象（生成JSON到C＃類）

public class Tags 
{ 
    public List<object> audience { get; set; } 
}  

public class Results 
{ 
    public int id { get; set; } 
    public string name { get; set; } 
    public Tags tags { get; set; } 
} 

public class RootObject 
{ 
    public Meta meta { get; set; } 
    public Results results { get; set; } 
} 

這裏是我的簡單UserItem POCO類

public class UserItem 
{ 
    public int id { get; set; } 
    public string name { get; set; } 
    public string title { get; set; } 
    public Audience audience { get; set; } 
} 

public class Audience 
{ 
    public int id { get; set; } 
    public string name { get; set; } 
}