remove & add select box option if other selection changes

Question

I have 3 select boxes and all are having same value (clones) & created on change of reference table selection. now i want to manage the selection on the three Constraint d

Answer 1

If I understand you correctly, you have elements with the same value in each and you want to disable selection in the each of the other elements when one of the elements is selected. Here's a small snippet showing how I did that:

HTML

    
    One
    Two
    Three
    A


    
    One
    Two
    Three
    B


        
    One
    Two
    Three
    C

jQuery

$(document).ready(function () {
    $('select.hello').change(function () {
        $('select.hello option').attr('disabled', false);
        $('select.hello').each(function() {
            var val = $(this).find('option:selected').val();
            if (!val) return;
            $('select.hello option').filter(function() {
                return $(this).val() == val;
            }).attr('disabled', 'disabled');
        });
    });
});

And here is a link to the jsFiddle: http://jsfiddle.net/yLCVf/1/