无法将 JSON 数组（例如 [1,2,3]）反序列化为类型“”，因为类型需要 JSON object（例如，将 {“name”} 正确地反序列化为“value”：

Question

hi im trying to download data from api and then try some linq on it but i cant even display it normaly. dynamic type works propelly but i cant use linq with it

im using this api http://api.nbp.pl/api/exchangerates/tables/a/?format=json

my class in c#

        public class Rootobject
        {
            public Class1[] Property1 { get; set; }
        }

        public class Class1
        {
            public string table { get; set; }
            public string no { get; set; }
            public string effectiveDate { get; set; }
            public Rate[] rates { get; set; }
        }

        public class Rate
        {
            public string currency { get; set; }
            public string code { get; set; }
            public float mid { get; set; }
        }

    

the code to deserialize:

 using (WebClient client = new WebClient())
            {
                String text = Encoding.UTF8.GetString(client.DownloadData("http://api.nbp.pl/api/exchangerates/tables/a/?format=json"));
                var Data = Newtonsoft.Json.JsonConvert.DeserializeObject<Rootobject>(text);

                Debug.WriteLine(Data);

            }

when i put it in array or list (like this)

var Data = Newtonsoft.Json.JsonConvert.DeserializeObject<Rootobject[]>(text);

i can only see the class path

Answer 1

To correctly represent json returned by provided link you can use array of Class1 , not Rootobject :

var Data = Newtonsoft.Json.JsonConvert.DeserializeObject<Class1[]>(text);