jstree的数据后台生成

jstree在前台的HTML格式如:

<div id="demo1" class="demo" style="height:100px;">

    <ul>         <li id="phtml_1">             <a href="#">Root node 1</a>             <ul>                 <li id="phtml_2">                     <a href="#">Child node 1</a>                 </li>                 <li id="phtml_3">                     <a href="#">Child node 2</a>                 </li>             </ul>         </li>         <li id="phtml_4">             <a href="#">Root node 2</a>         </li>     </ul> </div>

 

后台生成这种格式的数据:(无限级,递归)

private string GetTreeString(int pid)

       {            IEnumerable<Model.TreesModel> TreesModelList= TreesBLL.GetList();            return "<ul>" + AddTreeNodeString(0, "所有栏目", customClassList) + "</ul>";        }

       private string AddTreeNodeString(int nodeId, string nodeName,  IEnumerable<Model.TreesModel> list)

       {            string nodeString = "";

           //找出List 中以nodeId为ParentID的节点

           IEnumerable<Model.TreesModel> childNodes = list.Where(i => i.PId== nodeId).OrderBy(i => i.SortNumber);

           int nodeCount = childNodes.Count();

           if (nodeCount == 0)

           {                //如果没找到子节点,返回<li></li>                nodeString = "<li><a href='#'>" + nodeName + "</a></li>";            }            else            {                //如果找到子节点,增加<ul>                nodeString = "<li><a href='#'>" + nodeName + "</a><ul>";

               //按子节点循环,每次掉自己增加一个节点的nodeString

               foreach (var item in childNodes)                {                    nodeString += AddTreeNodeString(item.Id, item.Name, list);                }                //增加</ul>                nodeString += "</ul></li>";            }

           return nodeString;

       }