How to cast a Newton.Json deserialized generic object to a custom object? [closed]

Question

I am using Newton's Json.Net to deserialize Json to a .NET object. I am trying to understand whether one can cast from a general object to a specific object.

ie:

object myObject JsonConvert.DeserializeObject<object>(myJsonValue);

myOrder = (Order)myObject;

The code is more about decribing my question. I understand that one could do this:

object myObject JsonConvert.DeserializeObject<order>(myJsonValue);

But due to the fact this is a helper function then it could not be "order", but something more general.

Thanks.

EDIT:

Getting the error:

Getting Unable to cast object of type 'Newtonsoft.Json.Linq.JObject' to type 'Order'

Answer 1

I'm going to make an assumption here because the question isn't 100% clear, but I think I've got a good idea:

But due to the fact this is a helper function then it could not be "order", but something more general.

You need to add a type argument to your helper function:

public class SomeHelper
{
    public T Deserialize<T>(string json)
    {
        return JsonConvert.DeserializeObject<T>(json);
    }
}

And to use it:

SomeHelper helper = new SomeHelper();
string json = "...";
Order order = helper.Deserialize<Order>(json);

Answer 2

Rather than deserialize to an object, it's easier to work with something deserialized to JToken.

JToken myObject = JsonConvert.DeserializeObject<JToken>(myJsonValue);

You can then use the JToken.ToObject<T>() method to perform the final conversion:

Order order = myObject.ToObject<Order>();