Deserialize json into C# object for class which has default private constructor

Question

I need to deserialize json for following class.

public class Test
{
    public string Property { get; set; }

    private Test()
    {
        //NOTHING TO I         


        

Answer 1

You can make Json.Net call the private constructor by marking it with a [JsonConstructor] attribute:

[JsonConstructor]
private Test()
{
    //NOTHING TO INITIALIZE
}

Note that the serializer will still use the public setters to populate the object after calling the constructor.

EDIT

Another possible option is to use the ConstructorHandling setting:

JsonSerializerSettings settings = new JsonSerializerSettings
{
    ConstructorHandling = ConstructorHandling.AllowNonPublicDefaultConstructor
};

Test t = JsonConvert.DeserializeObject(json, settings);