public JsonResult ContactFormUpload(ContactFormViewModel product)    //Ajax ile (+)
        {
            if (ModelState.IsValid)
            {
                bool result = everynoteuser_mngr.ContactForm(product.Name, product.Email, product.Subject, product.Message);

                if (result == true)
                {
                    return(Json(new { hasError = false, message = "Your message sended has been successful!" }));
                }
                else
                {
                    return(Json(new { hasError = true, message = "Your message did not send as a successful!" }));
                }
            }

            string messages = string.Join("  ", ModelState.Values.SelectMany(x => x.Errors).Select(x => x.ErrorMessage));


            return(Json(new { hasError = true, message = messages }));
        }