C# JSON custom serialization

Question

Is there a way/library that will allow me to customize JSON serialization similar to GSON custom serializers?

Here is what I\'m trying to get:

this object: <

Answer 1

First i suggest to use newton json dll.

Second your need create custom JsonConverter for KeyValuePair like this:

  public class PairConverter : JsonConverter
  {
    public override bool CanConvert(Type objectType)
    {
       return objectType == typeof(KeyValuePair);
    }

    public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
    {
      throw new NotImplementedException();
    }

    public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
    {
      var item = (KeyValuePair)value;
      writer.WriteValue(item.Value);
      writer.Flush();
    }
  }

And than add JsonConverter attribute for 'Age' property like this:

 public class Persons
 {
   [JsonConverter(typeof(PairConverter))]
   public KeyValuePair Age { get; set; }
 }

Finally, example of usage:

 var persons = new Persons()
 {
    Age = new KeyValuePair("Age", 10)
 };
 var json = JsonConvert.SerializeObject(persons); // {Age:10}