checkboxesBoolean(default: false)
When set to true, renders a checkbox next to each item in the dropdown list. Works in conjunction with the selectAll option to provide a fully checkbox-driven multi-selection experience.
Example - enable checkboxes
<select id="multiselect" multiple="multiple">
<option>Item1</option>
<option>Item2</option>
<option>Item3</option>
</select>
<script>
$("#multiselect").kendoMultiSelect({
checkboxes: true
});
</script>