CustomConverter

CSharp · Console

/Program.cs

using System;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
	
public class CoordenadaConverter : JsonConverter
{
	public override bool CanConvert(Type objectType)
	{
		return objectType == typeof(Coordenada);
	}
	
	public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
	{
		if (reader.TokenType == JsonToken.Null)
			return null;
		var array = JArray.Load(reader);
		var coordenada = (existingValue as Coordenada ?? new Coordenada());
		coordenada.Latitude = (float)array[0];
		coordenada.Longitude = (float)array[1];
		return coordenada;
	}
	
	public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
	{
		var coordenada = (Coordenada)value;
		serializer.Serialize(writer, new[] { coordenada.Latitude, coordenada.Longitude });
	}
}

[JsonConverter(typeof(CoordenadaConverter))]
public class Coordenada 
{
	public float Latitude {get; set;}
	public float Longitude {get; set;}
}

public class Program
{	
	public static void Main()
	{
		var json = @"
[
	[-23.45317,-46.707126],
	[-23.453181,-46.707125],
	[-23.453196,-46.707123],
	[-23.453484,-46.706913],
	[-23.453593,-46.706865],
	[-23.453759,-46.706795],
	[-23.453942,-46.706744],
	[-23.45431,-46.7066],
	[-23.454667,-46.706528],
	[-23.455409,-46.70635],
	[-23.45572,-46.706264],
	[-23.455805,-46.706178],
	[-23.45586,-46.706151],
	[-23.455983,-46.706157],
	[-23.456166,-46.706137],
	[-23.457182,-46.705768],
	[-23.457373,-46.705762],
	[-23.457346,-46.705728],
	[-23.457339,-46.705664],
	[-23.457388,-46.705554],
	[-23.457451,-46.705489],
	[-23.457565,-46.705387],
	[-23.457713,-46.705283],
	[-23.457778,-46.705215],
	[-23.457809,-46.705126],
	[-23.457822,-46.705061],
	[-23.45783,-46.704993],
	[-23.457832,-46.704927],
	[-23.457819,-46.704846],
	[-23.457761,-46.704654],
	[-23.457719,-46.704532],
	[-23.457543,-46.704264],
	[-23.457378,-46.704054],
	[-23.457296,-46.703964],
	[-23.457257,-46.703931]
]
		";
		
		var deserialized = JsonConvert.DeserializeObject<Coordenada[]>(json);		
		foreach (var coordenada in deserialized) 
		{
			Console.WriteLine("Latitude: " + coordenada.Latitude + ", Longitude: " + coordenada.Longitude);	
		}
		
		var serialized = JsonConvert.SerializeObject(deserialized, Formatting.Indented);		
		Console.WriteLine(serialized);
		
		
	}
}