Are there any GWT gurus out there who can guide me on how to start with Drag and Drop in GWT for custom widgets. I have a build a simple tree structure by putting custom widgets inside an HTMLPanel (table rows) and want to be able to drag and drop each widget above or below other widgets but don't know where to start I am using 1.6. I need someone to guide me or point me in the right direction. thanks
gwt-dnd providing easy to use drag-and-drop capabilities to Google Web Toolkit (GWT) projects. I encourage you for using this library. You can see a complete demo with source code about gwt-dnd in this site .
You can also look at drag-and-drop plugin of gwtquery. documentation : http://code.google.com/p/gwtquery-plugins/wiki/DragAndDropPluginForGWTDeveloppers
来源：https://stackoverflow.com/questions/1390965/gwt-simple-drag-and-drop-for-custom-widgets