public ActionResult ReturningObject()
 {
     var result = new SampleResponseModel()
     {
         CurrentTime = DateTime.Now.ToLongTimeString(),
         Message = "Hello!",
         Success = true
     };
     return Json(result);
 }
 public ActionResult ReturningObjectWithParameters(string echo)
 {
     var result = new SampleResponseModel()
     {
         CurrentTime = DateTime.Now.ToLongTimeString(),
         Message = echo,
         Success = true
     };
     return Json(result);
 }
 public ActionResult VoidMethodWithParameters(SampleResponseModel model)
 {
     return Json(true);
 }
 public ActionResult VoidMethodWithParameters(SampleResponseModel model)
 {
     return null;
 }