拖放位置放置 jquery

我在jqxtree中画了一棵树。我必须拖动树元素并绘制一个小框div 并附加到div id processFlowId 中。

拖放代码

$( ".dragItem" ).draggable({ revert: true,
         revertDuration: 0,
         cancel : 'span',
         refreshPositions: true 
        //,containment: "parent"
         ,helper: 'clone'});
$('#jqxTree').jqxTree({
       height: '200px',
       width: '300px',
       theme: 'energyblue',
       allowDrag: true,
       allowDrop: false
   });
 $(".dragItem").css({"position": ""});
var itemFlag =0;
$("#acceptDrop").droppable({
          accept: ".dragItem",
          activeClass: "drop-active",
          hoverClass: "drop-hover",
          drop: function (event, ui) {
              var itemid = ui.draggable.attr("id");
              itemFlag++
              drawAttrList(itemid + "_" + itemFlag,itemid,"processElement",ui);
          }
});
function drawAttrList(mainDivId, droppedToolId, dataMiningType,ui) {
    var html = '<div class="mouseHover" id="'+ mainDivId+ '"'
     + 'style="width:200px;"'+'><div class="widget-box w"><div class="widget-header" title="'+ mainDivId+ '">';
html += '<h4 class="lighter smaller" onclick="openProperties('''
            + mainDivId + ''',''' + dataMiningType
            + ''')"><i class="icon-random blue"></i>' + droppedToolId + '</h4>';
    html += '</div>';
    html += '<div  class="widget-body" ><div class="widget-main" ><div class="row-fluid">';
    html += '<div id="cart_toolbarList " class="drags"><div id="'+itemFlag+ droppedToolId + 'List_items" style="height:100px">';
    html += '<ul  class="item-list ui-sortable ' + droppedToolId + 'List'+ itemFlag + '" style="height:100%;border-style: dashed;border-width: 1px;border-color: silver;">';
    html += '</ul></div></div></div></div></div></div></div>';
    $("#" + mainDivId).draggable({
        revertDuration : 0,
        refreshPositions : true,
        revert: true,
        helper : 'clone'
    });
    $("#processFlowId").append(html);
}

请参考我的杰斯菲德尔

问题

我需要拖动 li 并在我掉落的位置相应地绘制。现在它没有绘制在我们掉落的位置。

任何建议都可以做到这一点！提前感谢！