The following code shows drag and drop feature of the jQueryUI and also collects the DOM Id of the element dragged.
<link rel="stylesheet" href="https://code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css">
<style>
#draggable { width: 70px; height: 70px; padding: 0.5em; float: left; margin: 10px 10px 10px 0; }
#droppable { width: 150px; height: 150px; padding: 0.5em; float: left; margin: 10px; }
</style>
<script src="https://code.jquery.com/jquery-1.12.4.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
<script>
$( function() {
$( "#draggable" ).draggable();
$( "#droppable" ).droppable({
classes: {
"ui-droppable-hover": "ui-state-hover"
},
drop: function( event, ui ) {
$(this).addClass( "ui-state-highlight" ).find( "p" ).html( "Dropped!" );
var id = ui.draggable.attr("id");
alert(id)
}
});
});
</script>
<div id="draggable" class="ui-widget-content">
<p>Drag me to my target</p>
</div>
<div id="droppable" class="ui-widget-header">
<p>Drop here</p>
</div>