[TreeGrid] ASP.NET MVC中使用jQuery EasyUI TreeGrid教程
mikel
2011-11-28
jQuery EasyUI 插件:http://www.jeasyui.com/download/index.php
引用部分代码: <link rel="stylesheet" type="text/css" href="../themes/default/easyui.css"> <link rel="stylesheet" type="text/css" href="../themes/icon.css"> <link rel="stylesheet" type="text/css" href="demo.css"> <script type="text/javascript" src="../jquery-1.6.min.js"></script> <script type="text/javascript" src="../jquery.easyui.min.js"></script> 前台页面部分: <table id="grid" toolbar="#toolbar" class="easyui-treegrid" style="width:700px;height:300px" url="/Area/List" idField="Identifier" treeField="Area_Name" fitColumns="true" pagination="true"> <thead> <tr> <th field="Area_Name" rowspan="2" width="150" editor="text">地区</th> </tr> </thead> </table> ASP.NET MVC 的控制器代码: public JsonResult List(string page, string rows) { List<Area> areas = new BusinessLogic().Select<Area>(); List<Object> result = new List<object>(); foreach (Area a in areas) { if (a._parentId.Equals(0)) { result.Add(new { Identifier = a.Identifier, Area_Name = a.Area_Name }); } else { result.Add(new { Identifier = a.Identifier, Area_Name = a.Area_Name, _parentId = a._parentId }); } } Dictionary<string, object> json = new Dictionary<string, object>(); json.Add("total",areas.Count); json.Add("rows",result);
return Json(json); } 注意控制器Action返回的是Json格式的数据格式如下: {"total":3,"rows":[{"Identifier":1,"Area_Name":"唐山市"}, {"Identifier":11,"Area_Name":"路北区","_parentId":1}, {"Identifier":2,"Area_Name":"河北省"}]} 如果直接利用ASP.NET MVC的Json转换函数得到的Json数据没有total值,不会显示出树形结构,因为TreeGrid需要total的数值,Json(areas)得到的结果如下: [{"Identifier":1,"Area_Name":"唐山市"},{"Identifier":11,"Area_Name":"路北区","_parentId":1},{"Identifier":2,"Area_Name":"河北省"}] 就是因为这个数据格式的问题,纠结了半天没有搞定,后来对照treegrid的例子将数据格式统一了才显示出来 注意:一定要在treegrid的html标签中声明url属性的值,否则在$(function(){})中不会显示数据,可能是因为treegrid初始化规定只能在加载页面解析 原文地址:http://www.mikel.cn/ |