First, I don’t think it makes sense to turn the option includeSelectAllOption
on, as it contradicts the logic of disabling certain options.
I would solve it by keep it dynamically and add an attribute data-group="1"
to each option of the select. In my solution proposal, each option of a different group than the currently selected options will be disabled. So if you need more groups, you are relatively free to assign the options to groups.
$(function() {
$('#chkveg').multiselect({
onChange: onChangeChkveg
});
function onChangeChkveg(option, checked) {
var groups = [],
parentElement = option.parent(),
allOptions = parentElement.find('option'),
allOptionsLength = allOptions.length,
groupLength, element, currentGroup, i;
for (i = 0; i < allOptionsLength; i++) {
element = $(allOptions[i]);
currentGroup = element.data('group');
if (typeof groups[currentGroup] === 'undefined' || groups[currentGroup] === false) {
groups[currentGroup] = element.prop('selected');
}
}
groupLength = groups.length;
for (i = 0; i < groupLength; i++) {
if (groups[i] === true) {
parentElement.find('option[data-group="' + i + '"]').prop('disabled', false);
parentElement.find('option[data-group!="' + i + '"]').prop('disabled', true);
break;
}
if (i == groupLength - 1) {
parentElement.find('option').prop('disabled', false);
}
}
parentElement.multiselect('refresh');
}
});
<select id="chkveg" multiple="multiple" class="">
<option value="FRAMEX" data-group="1">Frame</option>
<option value="LINERX" data-group="1">Liner</option>
<option value="PRINTSX" data-group="2">Prints</option>
</select>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://davidstutz.de/bootstrap-multiselect/dist/js/bootstrap-multiselect.js"></script>
<link href="https://davidstutz.de/bootstrap-multiselect/docs/css/bootstrap-3.3.2.min.css" rel="stylesheet" />
<link href="https://davidstutz.de/bootstrap-multiselect/dist/css/bootstrap-multiselect.css" rel="stylesheet" />
<script src="https://davidstutz.de/bootstrap-multiselect/docs/js/bootstrap-3.3.2.min.js"></script>