textboxes are empty on postback with bootstrap modal asp.net

Question

I am using bootstrap modal in my asp.net page like this:

Answer 1

I just had similar problem. I resolved this by moving the modal element inside the form element using jquery.

   function init() {
        var element = $('#myModal').detach();
        $($("form")[0]).append(element);        
    }

    window.addEventListener('DOMContentLoaded', init, false);