namespace System.Web.Mvc {

    using System;

    using System.Text;

    using System.Web;

    using System.Web.Mvc.Resources;

    using System.Web.Script.Serialization;



    public class JsonResult : ActionResult {



        public JsonResult() {

            JsonRequestBehavior = JsonRequestBehavior.DenyGet;

        }



        public Encoding ContentEncoding {

            get;

            set;

        }



        public string ContentType {

            get;

            set;

        }



        public object Data {

            get;

            set;

        }



        public JsonRequestBehavior JsonRequestBehavior {

            get;

            set;

        }



        public override void ExecuteResult(ControllerContext context) {

            if (context == null) {

                throw new ArgumentNullException("context");

            }

            if (JsonRequestBehavior == JsonRequestBehavior.DenyGet &&

                String.Equals(context.HttpContext.Request.HttpMethod, "GET", StringComparison.OrdinalIgnoreCase)) {

                throw new InvalidOperationException(MvcResources.JsonRequest_GetNotAllowed);

            }



            HttpResponseBase response = context.HttpContext.Response;



            if (!String.IsNullOrEmpty(ContentType)) {

                response.ContentType = ContentType;

            }

            else {

                response.ContentType = "application/json";

            }

            if (ContentEncoding != null) {

                response.ContentEncoding = ContentEncoding;

            }

            if (Data != null) {

                JavaScriptSerializer serializer = new JavaScriptSerializer();

                response.Write(serializer.Serialize(Data));

            }

        }

    }

}