无法将 JSON 数组反序列化为对象

Question

    string res = "{\"ArastirmaRaporListesiResult\":{\"Data\":[{\"Baslik\":\"Akbank\",\"DosyaAd\":\"66245_AKBNK_27062022_OtomatikBUlten.pdf\",\"EnstrumanKod\":\"AKBNK\",\"KategoriAd\":\"Şirket Notu\",\"KategoriKod\":\"SIRKETRAPOR\",\"RaporId\":27573,\"RaporTarih\":\"27.06.2022\",\"Url\":\"http:\"},{\"Baslik\":\"Bim Mağazalar\",\"DosyaAd\":\"66243_BIMAS_27062022_OtomatikBUlten.pdf\",\"EnstrumanKod\":\"BIMAS\",\"KategoriAd\":\"Şirket Notu\",\"KategoriKod\":\"SIRKETRAPOR\",\"RaporId\":27571,\"RaporTarih\":\"27.06.2022\",\"Url\":\"http:\"}],\"ErrorCode\":0,\"ErrorMessage\":null,\"StatusCode\":200}}";

    public class Result
    {
        public List<Data> Datas { get; set; }
        public int ErrorCode { get; set; }
        public string ErrorMessage { get; set; }
        public int StatusCode { get; set; }
    }

    public class Data
    {
        public string Baslik { get; set; }
        public string DosyaAd { get; set; }
        public string EnstrumanKod { get; set; }
        public string KategoriAd { get; set; }
        public string KategoriKod { get; set; }
        public string RaporId { get; set; }
        public string RaporTarih { get; set; }
        public string Url { get; set; }
    }

    var arastirmaContracts = JsonConvert.DeserializeObject<List< Result>>(res);

Cannot deserialize the current JSON object (eg {"name":"value"}) into type 'System.Collections.Generic.List`1[Finnet.Program+ArastirmaRaporListesiResults]' because the type requires a JSON array (eg [1,2,3]) to deserialize correctly. To fix this error either change the JSON to a JSON array (eg [1,2,3]) or change the deserialized type so that it is a normal .NET type (eg not a primitive type like integer, not a collection type like an array or List) that can be deserialized from a JSON object. JsonObjectAttribute can also be added to the type to force it to deserialize from a JSON object. Path 'ArastirmaRaporListesiResult', line 1, position 31.

Answer 1

The first thing i noticed is that your Result class will be trying to bind to a property called "Datas" where as the json string suggests it should be called "Data". Based on the json string I think you should try to deserialize to:

public partial class Result
{
    public ArastirmaRaporListesiResult ArastirmaRaporListesiResult { get; set; }
}

public partial class ArastirmaRaporListesiResult
{
    public Datum[] Data { get; set; }
    public long ErrorCode { get; set; }
    public object ErrorMessage { get; set; }
    public long StatusCode { get; set; }
}

public partial class Datum
{
    public string Baslik { get; set; }
    public string DosyaAd { get; set; }
    public string EnstrumanKod { get; set; }
    public string KategoriAd { get; set; }
    public string KategoriKod { get; set; }
    public long RaporId { get; set; }
    public string RaporTarih { get; set; }
    public string Url { get; set; }
}

For reference I used https://app.quicktype.io/ to generate the class

Answer 2

public class ArastirmaRaporListesiResult
{
    public List<Datum> Data { get; set; }
    public int ErrorCode { get; set; }
    public object ErrorMessage { get; set; }
    public int StatusCode { get; set; }
}
public class Datum
{
    public string Baslik { get; set; }
    public string DosyaAd { get; set; }
    public string EnstrumanKod { get; set; }
    public string KategoriAd { get; set; }
    public string KategoriKod { get; set; }
    public int RaporId { get; set; }
    public string RaporTarih { get; set; }
    public string Url { get; set; }
}
public class Root
{
    public ArastirmaRaporListesiResult ArastirmaRaporListesiResult { get; set; }
}

Root myDeserializedClass = JsonConvert.DeserializeObject(myJsonResponse);

It works in this state. Thanks.