树

public JsonResult Tree()
{
var i = bl.info();
var linq = from s in i
select new
{
id = s.id,
name = s.name,
pId = s.pid,
open = true
};
return Json(linq,JsonRequestBehavior.AllowGet);
}

<div>
<ul id="treeDemo" class="ztree">
<li></li>
</ul>
</div>