Want to limit the selection.

[tahiriqbalnajam]

Hi,
I tried to limit the selection on callback onOptionClick by checking length of selectVals but no success,
If you can add this in options that will be great.

[nobleclem]

No need to add as an option. Just a little work and it can be done with onOptionClick like this:

$('select[multiple]').multiselect({
    onOptionClick: function( element, option ) {
        var maxSelect = 3;

        // too many selected, deselect this option
        if( $(element).val().length > maxSelect ) {
            if( $(option).is(':checked') ) {
                var thisVals = $(element).val();

                thisVals.splice(
                    thisVals.indexOf( $(option).val() ), 1
                );

                $(element).val( thisVals );

                $(option).prop( 'checked', false ).closest('li')
                    .toggleClass('selected');
            }
        }
        // max select reached, disable non-checked checkboxes
        else if( $(element).val().length == maxSelect ) {
            $(element).next('.ms-options-wrap')
                .find('li:not(.selected)').addClass('disabled')
                .find('input[type="checkbox"]').attr( 'disabled', 'disabled' );
        }
        // max select not reached, make sure any disabled checkboxes are available
        else {
            $(element).next('.ms-options-wrap')
                .find('li.disabled').removeClass('disabled')
                .find('input[type="checkbox"]').removeAttr( 'disabled' );
        }
    }
});