ignoreCase Boolean(default: true)

If set to false case-sensitive search will be performed to find suggestions. The widget performs case-insensitive searching by default.

Example - disable case-insensitive suggestions

<select id="multiselect" multiple="multiple">
    <option>Item1</option>
    <option>Item2</option>
</select>
<script>
$("#multiselect").kendoMultiSelect({
  ignoreCase: false
});
</script>