从bootstrap formhelper验证bootstrap datepicker

是否可以使用JQuery Validation来验证Bootstrap Datepicker？由于它没有暴露这个input领域,我无法让它验证.

示例:https://jsfiddle.net/Khrys/2rcr9j5s/

$.validator.setDefaults({
   submitHandler: function() {
      form.submit()
   }
});


$().ready(function() {
var container = $('div.containerx');

    $("#Form").validate({
        ignore: [],
        messages: {
            StartTime: {
                required: "Select the StartTime."
            }
        },
        errorContainer: container,
        errorLabelContainer: $("span", container),

        highlight: function ( element, errorClass, validClass ) {
            $('#StartTime').addClass( "btn-danger" );
            $('#Filter').addClass( "btn-danger" );
        },
        unhighlight: function ( element, errorClass, validClass ) {
            $('#StartTime').removeClass( "btn-danger" );
            $('#Filter').removeClass( "btn-danger" );
        }
    });
}); 

更新:

类btn-danger需要正确地应用于元素.

https://jsfiddle.net/2rcr9j5s/4/