What web programming framework best supports ’drag and drop’ actions? Please give examples of sites and/or plug-ins that support the interaction.
My answer to What web programming framework best supports ’drag and drop’ actions? Please give examples of sites and/or plug-ins that support the interaction. on Quora
Drag and drop is a client-side thing—it has nothing to do with the server-side technology being used.
Take a look at the drag and drop implementation provided by the big open source JavaScript libraries—Dojo, YUI, jQuery UI all have solid implementations.