Minimalist JavaScript library for reorderable drag-and-drop lists on modern browsers and touch devices. No jQuery, supports AngularJS and any CSS library, e.g. Bootstrap.

You need to create a new attribute called Order, or whatever you like, but the type must be Integer.

In demonstration have a example using entities, and way to change order when drag and drop.

Enable a group of DOM elements to be sortable. Click on and drag an element to a new spot within the list, and the other items will adjust to fit. By default, sortable items share draggable properties 

Documentation: https://sortablejs.github.io/Sortable/