将对象添加到列表中c＃-windows phone

Question

我需要有2个列表（列表A和列表B），列表的数据源都是JSON数组对象，列表A包含来自JSON响应和列表的所有记录B包含它的一个子集，它基于对象的状态类型。这是我到目前为止有：

public class Result 
{ 
    public int request_id { get; set; } 
    public string createdTime { get; set; } 
    public string status { get; set; } 
} 

public class RootObject 
{ 
    public List<Result> result { get; set; } 

} 

我为解析它使用JSON.NET和填充列表A

var responseString = await response.Content.ReadAsStringAsync(); 
RootObject rootoject = JsonConvert.DeserializeObject<List<RootObject>>(responseString)[0]; 
     ListBox1.ItemsSource = rootoject.result; 

基于此状态的记录

林查询列表

HashSet<Result> sample = new HashSet<Result>(rootoject.result.Where(item 
      => item.status == "approved")); 
List<RootObject> approvedlist = new List<RootObject>(); 

     **approvedlist.Add(sample); Getting error here cannot convert from hashset to Rootobject** 

我试过

RootObject sample=new HashSet<Result>(rootoject.result.Where(item 
      => item.status == "approved")); 

这也给我错误。

Answer 1

尝试（我没有一个编译器附近）

var sampleList = new HashSet<Result>(rootoject.result.Where(item 
      => item.status == "approved")).ToList(); 
var sampleRootObject = new RootObject(); 
sampleRootObject.result = sampleList; // The setter needs to be made public 
approvedList.Add(sampleRootObject);