public JsonResult GetActivities()
 {
     ActivityServices service = new ActivityServices();
     int loggedInUser =Convert.ToInt16(SessionManagement.GetValue("UserId"));
     if (loggedInUser > 0)
     {
         return Json(service.GetAllActivities(loggedInUser), JsonRequestBehavior.AllowGet);
     }
     else
     {
         return Json("", JsonRequestBehavior.AllowGet);
     }
 }
        public JsonResult AddNewActivity(Activity objActivity)
        {
            ActivityServices service = new ActivityServices();
            if (ModelState.IsValid)
            {
                int loggedInUser = Convert.ToInt16( SessionManagement.GetValue("UserId"));
                objActivity.UserId = loggedInUser;
                service.SaveActivity(objActivity);
                return Json(objActivity, JsonRequestBehavior.AllowGet);

            }
            return Json("", JsonRequestBehavior.AllowGet);
        }