nyroModal v2: How to validate form opened in iframe?

I'm trying to figure out how to validate a form opened using nyroModal.

The page is being opened as below on click of a 开发者_JS百科button:

$(function() {
    $('.btnedit').click(function() {
        $.nmManual('form_page.php);
    });
});

On the form that opens up, I have a few fields that are mandatory and a cancel & submit button.

<a class="nyroModalClose button" href="#" id="btn_submit">Submit</a>

On clicking of the submit button, I want to make sure the mandatory fields have value. If no, an error message should be displayed & the modal window should not close.

I'm trying to use the jquery validation plugin, but without success. The modal window always closes irrespective of the validation scripts.

I haven't found much info regarding form validation in a modal window. Is this not a preferred approach?

Thanks in advance.

I'm not able to help you about the jquery validation plugin in a modal window, but I know that using the instruction $.nmManual in that way, the form will not be placed inside the iframe tag, and if I remember correctly the content of new page will be added without header and body tags, so in a word incorrectly. I guess this can produce no validation.

To successfully open an iframe you need to use filters as described here: Open iframe manually in nyroModal?

I hope this can help you.