Question

I’m using the System.Runtime.Serialization.Json library

This doesn’t Work

public class Detections
            {
                [DataContract]
                public class RootObject
                {
                    [DataMember(Name = "data")]
                    public DataObject Data { get; set; }
                }

                [DataContract]
                public class DataObject
                {
                    [DataMember(Name = "detections")]
                    public List<Detection> Detections { get; set; }
                }

                [DataContract]
                public class Detection
                {
                    [DataMember(Name = "language")]
                    public string Language { get; set; }
                    [DataMember(Name = "isReliable")]
                    public string IsReliable { get; set; }
                    [DataMember(Name = "confidence")]
                    public string Confidence { get; set; }
                }
            }

So how should I parse this

{
     "data": {
      "detections": [
       [
        {
         "language": "tr",
         "isReliable": false,
         "confidence": 0.086520955
        }
       ]
      ]
     }
    }

Answer 1

The problem is occurring for two reasons.

1) Your nested classes needed to be removed from within the Detections class.

2) The JSON contains a multi-dimensional array for the detections member where I assume it needs to be single.

I have tested the code detailed below it works fine.

//Classes

[DataContract]
public class RootObject
{
    [DataMember(Name = "data")]
    public DataObject Data { get; set; }
}

[DataContract]
public class DataObject
{
    [DataMember(Name = "detections")]
    public List<Detection> Detections { get; set; }
}

[DataContract]
public class Detection
{
    [DataMember(Name = "language")]
    public string Language { get; set; }
    [DataMember(Name = "isReliable")]
    public string IsReliable { get; set; }
    [DataMember(Name = "confidence")]
    public string Confidence { get; set; }
}

//Code to deserialize

var serializer = new DataContractJsonSerializer(typeof(RootObject));
var json = "{\"data\": {\"detections\": [{\"language\": \"tr\",\"isReliable\": false,\"confidence\": 0.086520955}]}}";
var stream = new MemoryStream(Encoding.UTF8.GetBytes(json));
var rootObject = serializer.ReadObject(stream);
stream.Close();

I Hope this helps you.