ASP.NET MVC：将 JObject 作为 JsonResult 返回

Question

I'm trying to return a JObject as my action resuls. I've used Newtonsoft.Json and JsonNetResult for converting objects to JsonResult. For normal objects, I use this syntax for serializing objects into JsonResult:

return new JsonResult
{
    ContentType = "application/json",
    ContentEncoding = System.Text.Encoding.UTF8,
    Data = myResult,
    JsonRequestBehavior = JsonRequestBehavior.AllowGet
};

Which myResult is instance of a desired object, However trying this for a JObject ( Newtonsoft.Json.Linq.JObject ) as below, returns invalid result ie [[[]]] :

JObject jsonObject = new JObject();
jsonObject["error"] = "invalid_id";
return new JsonResult
{
    ContentType = "application/json",
    ContentEncoding = System.Text.Encoding.UTF8,
    Data = jsonObject,
    JsonRequestBehavior = JsonRequestBehavior.AllowGet
};

How can I serialize JObject in this case?

Answer 1

You can try:

    public JsonObject GetJson_1()
    {
        var errors = new Dictionary<string, string>();
        errors.Add("Id", "invalid");

        return new JsonObject(errors);
    }

    public ActionResult GetJson_2()
    {
        var errors = new List<object>();

        errors.Add(new { Id = "invalid" });

        return Json(errors, JsonRequestBehavior.AllowGet);
    }

Hope this helps!

Answer 2

This worked for me !!

        var serialized = JsonConvert.SerializeObject(response, 
                 new JsonSerializerSettings() {
                     ContractResolver = new CamelCasePropertyNamesContractResolver() 
        });

        return new ContentResult()
        {
            Content = serialized,
            ContentType = "application/json",
        };

response is an instance of a c# class that contains a property of type JObject. This caused Ok(response) to return empty array symbols ([]) for every property inside the jobject. Manually serializing and returning it as a contentresult solved it for me.