я нахожу путь:
html:
{
type: "html",
name: "info",
html: "<div id='g-recaptcha'></div> <div class='form-group g-recaptcha' data-callback='verifyCaptcha' data-sitekey='" + recaptchaClientKey + "'></div>"
}
ts, js
survey.onCompleting.add(function (sender, options) {
debugger;
var response = grecaptcha.getResponse();
if (response.length == 0) {
document.getElementById('g-recaptcha').innerHTML =
'<span class="form-group text-danger validation-summary-errors" data-valmsg-summary="true"><ul><li>Google reCAPTCHA validation failed</li></ul ></span >';
options.allowComplete = false;
} else {
options.allowComplete = true;
}
});
@section Scripts{
<script type="text/javascript" src="~/js/signup/survey_config.js"></script>
<script src='https://www.google.com/recaptcha/api.js'></script>
<script>
function verifyCaptcha() {
document.getElementById('g-recaptcha').innerHTML = '';
}
</script>
}