submitHandler无法正常工作

Question

我的代码中有一个JQuery验证，它验证了我的字段但是当我按下提交按钮时，JQuery submitHandler（）没有执行。

这是我的代码。

$(document).ready(function () {
    $("#stdRegFrm").validate({
        debug: true,
        rules: {
            applicantFirstName: {required: true,    minlength: 2},
            applicantaddmissionno: {required: true, minlength: 2,remote:{url: 'jsp/checkadmno.do', type: "POST", contentType : "application/x-www-form-urlencoded; charset=UTF-8", data: {addmissionno: function(){ return   $("#applicantaddmissionno").val();}},}},
            applicantMiddleName: {required: true,   minlength: 2}
        },                  
        messages: {
            applicantFirstName: {required: 'This field is required', minlength: 'Minimum length: 2'},
            applicantMiddleName: {required: 'This field is required', minlength: 'Minimum length: 2'},
            applicantaddmissionno:{required: 'This field is requaired!', minlength: 'Minimum length: 2', remote:'student admission no. already exist'},
        },
        success: function(label) {
            label.html('ok').removeClass('error').addClass('ok');
            setTimeout(function(){label.fadeOut(500);}, 2000);
        },
        submitHandler:function(form) {
            alert($('#applicantFirstName').val());
        },
    });
});