54EasyUI 树形菜单- 树形菜单拖放控制

$('#tt').tree({
       dnd: true,
       url: 'tree_data.json'
   });

onDrop: function(targetNode, source, point){
        var targetId = $(target).tree('getNode', targetNode).id;
        $.ajax({
            url: '...',
            type: 'post',
            dataType: 'json',
            data: {
                id: source.id,
                targetId: targetId,
                point: point
            }
        });
    }