I am using the Project Gantt component and want to drag and drop inside the component. I want to drag a timeline from one row and drop it to another row. And also drag a timeline from a row and drop it another place in the same row. Can I make the component a dragsource and droptarget?
I found this demo http://download.oracle.com/otn_hosted_doc/jdeveloper/11/demos/DVT_Gantt_Chart/ADFDVTGanttChartDemo.html
In this example they show exactly what you need.
Unfortunatelly I don't know how this drag & drop is implemented. Maybe it's an out-of-the-box feature of the gantt chart component.
Maybe there will be more documentation and example code available as soon as production release of Jdev 11g is released (will be "soon").