using System;

using Newtonsoft.Json;

using Newtonsoft.Json.Linq;

​

public class ConnectionSummary

{

    public ConnectionSummary(Connection connection)

    {

        this.ConnectionId = connection.Id;

        this.SystemId = connection.SystemId;

    }

​

    [JsonProperty(PropertyName = "connectionId", Required = Required.Always)]

    public string ConnectionId { get; set; }

​

    [JsonProperty(PropertyName = "systemId")]

    public string SystemId { get; set; }

}

​

public class Connection

{

    public Connection()

    {

        // Initialization of other properties

    }

​

    [JsonProperty(PropertyName = "systemId", Required = Required.Always)]

    public string SystemId { get; set; }

​

    [JsonProperty(PropertyName = "id", Required = Required.Always)]

    public string Id { get; set; }

​

    // Other properties

}

​

public class ConnectionSummaryConverter : JsonConverter

{

    public override bool CanConvert(Type objectType)

    {

        return objectType == typeof(ConnectionSummary);

    }

​

    public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)

    {

        JObject jo = JObject.Load(reader);

        Connection conn = new Connection

        {

            Id = (string)jo["connectionId"],

            SystemId = (string)jo["systemId"]

        };

        return new ConnectionSummary(conn);

    }

​

    public override bool CanWrite 

    {

        get { return false; }

    }

​

    public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)

    {

        throw new NotImplementedException();

    }

}

​

​

public class Program

{

    public static void Main()

    {

        var json = "{\"connectionId\":\"id\",\"systemId\":\"sId\"}";

        var deserial = JsonConvert.DeserializeObject<ConnectionSummary>(json, new ConnectionSummaryConverter());

        Console.WriteLine("ConnectionId: " + deserial.ConnectionId);

        Console.WriteLine("SystemId: " + deserial.SystemId);

    }

}

​

​