             helper: 'clone',
                    scope: 'tabletotree',
                    activeClass: 'active-drop',
                    hoverClass: 'highlight-drop',
                    tolerance: 'touch',
                    drop: function (event, ui) {
                        tableToTree([
                            {name: 'colIndex', value: ui.draggable.index()}
                        ]);
                    }
                });
            }

            $(function () {
                initDND();