using MongoDB.Bson;

using MongoDB.Driver;

using MongoDB.Driver.GeoJsonObjectModel;

using Newtonsoft.Json;

using Newtonsoft.Json.Linq;

using System;

using System.Collections.Generic;

using System.Drawing;

​

public class Action

{

    public string ActionType { get; set; }

    public int Sequence { get; set; }

    public GeoJsonPoint<GeoJson2DGeographicCoordinates> At { get; set; }

​

    public Action(string actionType, int sequence, JObject at)

    {

        ActionType = actionType;

        Sequence = sequence;

        if (at != null && at["type"] != null && at["type"].ToString() == "Point" && at["coordinates"] != null)

        {

            JArray coordinates = (JArray)at["coordinates"];

            double longitude = coordinates[0].Value<double>();

            double latitude = coordinates[1].Value<double>();

            At = new GeoJsonPoint<GeoJson2DGeographicCoordinates>(new GeoJson2DGeographicCoordinates(longitude, latitude));

        }

    }

}

​

class Program

{

    static void Main(string[] args)

    {

        string json = @"

        [

          {

            ""actionType"": ""load"",

            ""sequence"": 1,

            ""at"": {

              ""type"": ""Point"",

              ""coordinates"": [125.6, 10.1]

            }

          },

          {

            ""actionType"": ""trucking"",

            ""sequence"": 2

          },

          {

            ""actionType"": ""deliver"",

            ""sequence"": 3,

            ""at"": {

              ""type"": ""Point"",

              ""coordinates"": [125.6, 10.1]

            }

          }

        ]";

​

        var actions = JsonConvert.DeserializeObject<List<Action>>(json);

​

        foreach (var action in actions)

        {

            if (action.At != null)

            {

                Console.WriteLine($"Action: {action.ActionType}, Sequence: {action.Sequence}, Type: {action.At.Type}, Coordinates: {action.At.Coordinates.Latitude} {action.At.Coordinates.Longitude}");

            }

            else

            {

                Console.WriteLine($"Action: {action.ActionType}, Sequence: {action.Sequence}");

            }

        }

    }

}

​