refresh

The refresh() method reloads the current instance of the SplitButton widget.
The optional parameter options gives the possibility to extend the initial options with the new ones.

<button id="but1">Split Button</button>

<script type="text/javascript">
     $(function () {
        $("#but1").shieldSplitButton({
        });
    });
    
    $("#but1").swidget().refresh();
</script>