Development Flex


    
        
            import mx.core.DragSource;
            import mx.events.DragEvent;
            import mx.managers.DragManager;
            private function mouseDownHandler( evt:MouseEvent ):void
            {
                var initiator:Box = evt.currentTarget as Box;
                var boxData:Object = new Object();
                boxData.width = 30;
                boxData.height= 40;
                boxData.backgroundColor = "Red";
                var dragSource:DragSource = new DragSource();
                dragSource.addData( boxData, "box" );
                DragManager.doDrag( initiator, dragSource, evt );
            }
            private function dragEnterHandler( evt:DragEvent ):void
            {
                if( evt.dragSource.hasFormat( "box" ) )
                {
                    DragManager.acceptDragDrop( Canvas( evt.currentTarget ) );
                }
            }
            private function dropHandler( evt:DragEvent ):void
            {
                var boxData:Object = evt.dragSource.dataForFormat( "box" );
                var box:Box = new Box();
                box.width = 40;
                box.height = 30;
                box.setStyle( "backgroundColor", "Yellow");
                box.x = evt.localX;
                box.y = evt.localY;
                canvas.addChild( box );
            }
      
    

            dragEnter="dragEnterHandler(event);"
        dragDrop="dropHandler(event);">
                    mouseDown="mouseDownHandler(event);"/>