复选框即使在Jquery中选中也仅返回false

Question

I submit the form while change dropdown option.After submit the form i redirect in to same page. I submit the form Using below function:

function submitform(){
    //Below variables are checkbox value
    var addresscheck = $('#addressmatchedCheck').is(':checked');
    var rcnumbercheck =  $('#rcnumbermatched').is(':checked');
    var phonenumbercheck = $('#phonenumbercheck').is(':checked');
    var idproofcheck = $('#idproofcheck').is(':checked');
    var guarantoraddresscheck = $('#guarantoraddressmatchedCheck').is(':checked');
    var guarantoridcheck = $('#guarantoridproofcheck').is(':checked');
    var guarantorrelationcheck = $('#guarantorrelationshipCheck').is(':checked');
    if( addresscheck &  rcnumbercheck & phonenumbercheck & idproofcheck  & guarantoraddresscheck & guarantoridcheck & guarantorrelationcheck) {
                $('#statusid').val(1);
                alert($('#statusid').val() + "if");
    }
    else{
        $('#statusid').val(2);
        alert($('#statusid').val() + "else");
    }
    $('#fieldVerificationFormID').attr('method', 'POST'); 
    $('#fieldVerificationFormID').attr('action', '/mfi/api/1.0/client/ci/groups/member/fieldverification/insert');
    $('#fieldVerificationFormID').submit();
} 

My problem is checkbox return only false even it is checked? First time ie before form submit it works exactly.Issue is after form submission. can anyone sove my issue?

Answer 1

This is what I use. I have a function that extends JQuery with an isChecked() function. I made this ages ago before the :checked was available in the selectors. But it's pretty bulletproof.

jQuery.fn.isChecked = function() {
    var isChecked = false;
    this.each(function(){
        if (this.checked) {
            isChecked = true;
            return;
        }
    });
    return isChecked;
}

function check() {
    var addressCheck = $('#addressmatchedCheck').isChecked();
}

Answer 2

If you name your checkboxes like this, it works:

<input type="checkbox" id="addressmatchedCheck" checked="checked" />
<input type="checkbox" id="rcnumbermatched" checked="checked" />
<input type="checkbox" id="phonenumbercheck" checked="checked" />
<input type="checkbox" id="idproofcheck" checked="checked" />
<input type="checkbox" id="guarantoraddressmatchedCheck" checked="checked" />
<input type="checkbox" id="guarantoridproofcheck" checked="checked" />
<input type="checkbox" id="guarantorrelationshipCheck" checked="checked" />

Demo: http://jsfiddle.net/Guffa/DqdgC/