在C＃中显示json错误标记＃

Question

我在一个Api中有一个错误标记的json。现在我想在错误发生时在c＃中显示错误内容。有没有人有这样的代码或例子？

--Edited--

string html = string.Empty; 
string url = @"http://henn.worteus.eu/?tag=getdatas&token=21123&id=" + sessions; 

WebRequest req = WebRequest.Create(url); 
req.ContentType = "application/json"; 
WebResponse resp = req.GetResponse(); 
Stream stream = resp.GetResponseStream(); 
StreamReader re = new StreamReader(stream); 
string json = re.ReadToEnd(); 

// Wrapper w = (Wrapper)new JavaScriptSerializer().Deserialize(json, typeof(Wrapper)); 
Wrapper w = (Wrapper)JsonConvert.DeserializeObject(json, typeof(Wrapper)); 

dataGrid.ItemsSource = w.data; 

下面是数据模型

public class Data 
{ 
    public string Skala { get; set; } 
    public string Wert { get; set; } 
    public string Bereich { get; set; } 
    public string Interpretationen { get; set; } 
} 

public class Wrapper 
{ 
    public List<Data> data { get; set; } 
    public string tag { get; set; } 
    public object error { get; set; } 
} 

Answer 1

如果有error财产上返回的模型

{ 
    "error":"...", 
    "data":[...] 
} 

然后desrialize的JSON来强类型然后访问属性

Wrapper w = JsonConvert.DeserializeObject<Wrapper>(json); 
var data = w.data; 
var error = w.error; 
if(error != null) { 
    //...perform some action 
}