Is there some way to update/save widget from page - not from admin ?
I create widget with charts and do not know how to update it from sidebar. I found of course form in admin:
<form action="" method="post"> <input type="submit" name="savewidget" id="widget-chart_widget-2-savewidget" class="button button-primary widget-control-save right" value="Save">
But what is this ID = widget-chart_widget-2-savewidget ... how this ID is created?