.net mvc mssql easyui treegrid

@{
    ViewBag.Title = "Index";
    Layout = "~/Views/Shared/_Layout.cshtml";  //模板 里面 有 easyui 需要的 js 、css 
}

 

<table id="ttt"  title="测试二"  class="easyui-treegrid" style="width: 700px; height: 250px"
    data-options="
                rownumbers: true,@*显示行号*@
                idField: ‘id‘,
                treeField: ‘name‘ , 
            ">
    <thead>
        <tr>
            <th data-options="field:‘name‘" width="220">name</th>
            <th data-options="field:‘name2‘" width="100" align="right">name2</th>
        </tr>
    </thead>
</table>

<table id="tttt" title="测试三" class="easyui-treegrid" style="width: 700px; height: 850px"
    data-options="
                rownumbers: true, 
                idField: ‘Id‘,
                treeField: ‘MenuName‘ , 
            ">
    <thead>
        <tr>
            <th data-options="field:‘MenuName‘" width="220">MenuName</th>
            <th data-options="field:‘Url‘" width="300" align="left">Url</th>
        </tr>
    </thead>
</table>
<script>
    $(document).ready(function () {

        //  测试 本地 加载 
        var jsonstr = {
            "total": 6, "rows": [
        { "id": 1, "name": "所有部门", name2: "3", "_parentId": 0 },
        { "id": 2, "name": "广东省", name2: "3", "_parentId": 1 },
        { "id": 3, "name": "广州市", name2: "3", "_parentId": 1 },
        { "id": 4, "name": "深圳", name2: "3", "_parentId": 1 },
        { "id": 5, "name": "白云区", name2: "3", "_parentId": 2 },
        { "id": 6, "name": "天河区", name2: "3", "_parentId": 2 }
            ]
        };
        $("#ttt").treegrid("loadData", jsonstr);


        //ajax 加载 
        $.ajax({
            type: ‘POST‘, url: ‘@Url.Action("IndexTestData")‘, dataType: ‘JSON‘, async: false, success: function (data) {
                $("#ttt").treegrid("loadData", data);
            }
        });

        $.ajax({
            type: ‘POST‘, url: ‘@Url.Action("Index")‘, dataType: ‘JSON‘, async: false, success: function (data) {
                $("#tttt").treegrid("loadData", data);
            }
        });
    });

</script>

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using KT_Product_Show_Market.Areas.Account.Models;
using Newtonsoft.Json;

namespace KT_Product_Show_Market.Areas.Account.Controllers
{
    public class TestController : Controller
    {
        KT_Product_MarketEntities db = new KT_Product_MarketEntities();
        protected override void Dispose(bool disposing)
        {
            db.Dispose();
            base.Dispose(disposing);
        }

        public ActionResult Index()
        {
            return View();
        }

        public class depts
        {
            public int id, _parentId; public string name, name2;
        }

        [HttpPost]
        [ActionName("IndexTestData")]
        public string IndexSrarchTest()
        {
            List<depts> arr = new List<depts>() { 
                new depts() { id = 1, name = "所有部门", name2="3", _parentId = 0 },
                new depts() { id = 2, name = "广东省", name2="3", _parentId = 1 },
                new depts() { id = 3, name = "广州市", name2="3", _parentId = 1 },
                new depts() { id = 4, name = "深圳", name2="3", _parentId = 1 },
             new depts() { id = 5, name = "白云区", name2="3", _parentId = 2 },
             new depts() { id = 6, name = "天河区", name2="3", _parentId =2 },
            };
            var obj = new KT_Product_Show_Market.Models.DataGridJson();  //创建EasyUI DataGrid 所需格式对象
            var All = arr;
            obj.total = All.Count();    //总行数
            obj.rows = All.ToList();     //获当前页数据集
            return JsonConvert.SerializeObject(obj, Formatting.Indented, new JsonSerializerSettings() { DateFormatHandling = 0 });
        }

        [HttpPost]
        [ActionName("Index")]
        public string IndexSrarch()
        {
            var obj = new KT_Product_Show_Market.Models.DataGridJson();  //创建EasyUI DataGrid 所需格式对象
            var All = db.Database.SqlQuery<Sys_Menu_tree>("select  MenuNo as ‘Id‘,substring(MenuNo,1,len(MenuNo)-2) as ‘_parentId‘,MenuName,Url from  Sys_Menu ");
            obj.total = All.Count();    //总行数
            obj.rows = All.ToList();     //获当前页数据集
            return JsonConvert.SerializeObject(obj, Formatting.Indented, new JsonSerializerSettings() { DateFormatHandling = 0 });
        }
        public class Sys_Menu_tree
        {
            public string Id { get; set; }
            public string _parentId { get; set; }
            public string MenuName { get; set; }
            public string Url { get; set; }
        }
    }
}

  public class DataGridJson
    {
        public int total { get; set; }    //记录的总条数
        public object rows { get; set; }  //具体内容
    }