Hi Gurus,

I am so frustrated with this reCAPTCHA V2 using MVC in Umbraco v8.x.x. It does not check or validate recaptcha at all. It simply submit the form with no message. Please help.

I used recent latest video of creating Contact form and client dependency Umbraco v8 on youtube, When i submit the form it doesn't validate the Recaptha field.

using Project.Core.Services;
using Project.Core.ViewModels;
using Recaptcha.Web;
using Recaptcha.Web.Mvc;
using System.Web;
using System.Web.Mvc;
using Umbraco.Web;
using Umbraco.Web.Mvc;

namespace Project.Core.Controllers
{
    public class ContactSurfaceController : SurfaceController
    {
        private readonly ISmtpService _smtpService;

        public ContactSurfaceController(ISmtpService smtpService)
        {
            _smtpService = smtpService;
        }

        [HttpGet]
        public ActionResult RenderForm()
        {
            ContactViewModel model = new ContactViewModel() { ContactFormId = CurrentPage.Id };
            return PartialView("~/Views/Partials/Contact/contactForm.cshtml", model);
        }

        [HttpPost]
        public ActionResult RenderForm(ContactViewModel model)
        {
            return PartialView("~/Views/Partials/Contact/contactForm.cshtml", model);
        }

        [HttpPost]
        public ActionResult SubmitForm(ContactViewModel model)
        {

            if (!ModelState.IsValid)
            {
                return CurrentUmbracoPage();

            }

            RecaptchaVerificationHelper recaptchaHelper = this.GetRecaptchaVerificationHelper();
            if (string.IsNullOrEmpty(recaptchaHelper.Response))
            {
                ModelState.AddModelError("reCAPTCHA", "Please complete the reCAPTCHA");
                return CurrentUmbracoPage();
            }
            else
            {
                RecaptchaVerificationResult recaptchaResult = recaptchaHelper.VerifyRecaptchaResponse();
                if (recaptchaResult != RecaptchaVerificationResult.Success)
                {
                    ModelState.AddModelError("reCAPTCHA", "The reCAPTCHA is incorrect");
                    return CurrentUmbracoPage();
                }
            }

            bool success = false;

            if (ModelState.IsValid)
            {
                success = _smtpService.SendEmail(model);

            }

            var contactPage = UmbracoContext.Content.GetById(false, model.ContactFormId);
            var successMessage = contactPage.Value<IHtmlString>("successMessage");
            var errorMessage = contactPage.Value<IHtmlString>("errorMessage");

            return PartialView("~/Views/Partials/Contact/result.cshtml", success ? successMessage : errorMessage);

        }
    }
}

and my View Model:

        public class ContactViewModel
        {
            [Required(ErrorMessage = "Please enter your name")]
            public string Name { get; set; }

            [Required(ErrorMessage = "please enter your email address")]
            [EmailAddress(ErrorMessage = "you must enter a valid email address")]
            public string Email { get; set; }

            [Required(ErrorMessage = "please enter your message")]
            [MaxLength(length: 500, ErrorMessage = "Your message must be no longer than 500 characters")]
            public string Message { get; set; }

            @*[Required(ErrorMessage = "please confirm you are human")]
            public string ErrorMessageCaptcha { get; set; }*@

            public int ContactFormId { get; set; }
        }

and my Partial View