checkedRecords.map function not working in j query 1.7.1 in mvc 3

[shanker bangari]

Hi

I did one application in mvc2 with jquery 1.4.4 it's working fine  .then  I convert to that application mvc2 to mvc 3 here j query 1.7.1 here i issue in my application checkbox.map funtion not wotking in mvc3 

$checkedRecords.map(function () { return this.value; })  it's not working in latest how to solve this .


this is my code 

function ManageStudentClassUpdate() {
    var $checkedRecords = $(':checked');
    var to_class_id = $('#Classes_Move').data('tDropDownList');
    var to_fiscal_year_id = $('#Fiscal_Year_Move').data('tDropDownList');
    var str = to_class_id.text();
    text = str.replace(/(?: |<br>)/g, '');
    var str1 = to_fiscal_year_id.text();
    var text1 = str1.replace(/(?: |<br>)/g, '');
    if (text1 == '') {
        alert("plzs Select Fiscal Year");
        return false;
    }
    if (text == '') {
        alert("plzs Select Class");
        return false;
    }
    else if (to_class_id.value() == 0) {
        alert("plzs Select Class");
        return false;
    }

    if ($checkedRecords.length < 1) {
        alert('No Student is Selected.');
        return;
    }
    $.post(MSCUpdateURL, { to_class_id: to_class_id.value(), to_fiscal_year_id: to_fiscal_year_id.value(), studentIDs: $checkedRecords.map(function () { return this.value; }) });
    to_class_id.text('');
    to_class_id.value('')
    to_fiscal_year_id.text('');
    to_fiscal_year_id.value('')

}