datagrid在MVC中的运用01

展开using System.Linq; 
using DataGridInMvc.Models; 
using System.Collections.Generic; 
using Microsoft.Ajax.Utilities;

namespace DataGridInMvc.Helper 
{ 
    public class BookService 
    { 
        public IEnumerable<Book> LoadPageBookData(PageParam param, out int total) 
        { 
            //创建Book的集合 
            var books = new List<Book>(); 
            for (int i = 0; i < 30; i++) 
            { 
                books.Add(new Book() 
                { 
                    ItemId = "EST-" + i, 
                    ProductId = "AV-SB-" + i, 
                    ListPrice = (i + 5) * 10m, 
                    UnitCost = (i + 2) * 10m, 
                    Attr1 = "Attr" + i, 
                    Status = (short)0 
                }); 
            }

            total = books.Count(); 
            var result = books.OrderBy(b => b.ItemId) 
                .Skip(param.PageSize*(param.PageIndex - 1)) 
                .Take(param.PageSize); 
            return result; 
        } 
    } 
}

展开using System.Collections.Generic; 
using System.Linq; 
using System.Security.Cryptography; 
using System.Web; 
using System.Web.Mvc; 
using DataGridInMvc.Helper; 
using DataGridInMvc.Models;

namespace DataGridInMvc.Controllers 
{ 
    public class HomeController : Controller 
    {

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

        public ActionResult GetData() 
        { 
            //接收datagrid传来的参数 
            int pageIndex = int.Parse(Request["page"]); 
            int pageSize = int.Parse(Request["rows"]);

            //构建得到分页数据方法所需的参数 
            var temp = new PageParam() 
            { 
                PageIndex = pageIndex, 
                PageSize = pageSize 
            };

            //分页数据方法的输出参数 
            int totalNum = 0;

            var service = new BookService(); 
            var books = service.LoadPageBookData(temp, out totalNum);

            var result = from book in books 
                select new {book.ItemId, book.ProductId, book.ListPrice, book.UnitCost, book.Status, book.Attr1};

            //total,rows是前台datagrid所需要的 
            var jsonResult = new {total = totalNum, rows = result};

            //把json对象序列化成字符串 
            string str = JsonSerializeHelper.SerializeToJson(jsonResult); 
            return Content(str); 
        } 
    } 
}       

展开using System; 
using Newtonsoft.Json;

namespace DataGridInMvc.Helper 
{ 
    public static class JsonSerializeHelper 
    { 
        /// <summary> 
        /// 把object对象序列化成json字符串 
        /// </summary> 
        /// <param name="obj">序列话的实例</param> 
        /// <returns>序列化json字符串</returns> 
        public static string SerializeToJson(object obj) 
        { 
            return JsonConvert.SerializeObject(obj); 
        }

        /// <summary> 
        /// 把json字符串反序列化成Object对象 
        /// </summary> 
        /// <param name="json">json字符串</param> 
        /// <returns>对象实例</returns> 
        public static Object DeserializeFromJson(string json) 
        { 
            return JsonConvert.DeserializeObject(json); 
        }

        /// <summary> 
        /// 把json字符串反序列化成泛型T 
        /// </summary> 
        /// <typeparam name="T">泛型</typeparam> 
        /// <param name="json">json字符串</param> 
        /// <returns>泛型T</returns> 
        public static T DeserializeFromJson<T>(string json) 
        { 
            return JsonConvert.DeserializeObject<T>(json); 
        } 
    } 
}

展开   <link href="~/Content/themes/default/easyui.css" rel="stylesheet" /> 
    <link href="~/Content/themes/icon.css" rel="stylesheet" /> 
    <script src="~/Scripts/jquery-1.10.2.js"></script> 
    <script src="~/Scripts/jquery.easyui.min.js"></script> 
    <script src="~/Scripts/easyui-lang-zh_CN.js"></script> 
    <script type="text/javascript"> 
        $(function() { 
            initData(); 
        });

        function initData() { 
            $(‘#tt‘).datagrid({ 
                url: ‘Home/GetData‘, 
                width: 500, 
                height: 350, 
                title: ‘Book列表‘, 
                iconCls: ‘icon-save‘, 
                fitColumns: true, 
                rownumbers: true, //是否加行号 
                pagination: true, //是否显式分页 
                pageSize: 15, //页容量，必须和pageList对应起来，否则会报错 
                pageNumber: 2, //默认显示第几页 
                pageList: [15, 30, 45],//分页中下拉选项的数值 
                columns: [[ 
                    //book.ItemId, book.ProductId, book.ListPrice, book.UnitCost, book.Status, book.Attr1 
                    { field: ‘ItemId‘, title: ‘主键‘, sortable: true }, 
                    { field: ‘ProductId‘, title: ‘产品编号‘ }, 
                    { field: ‘Attr1‘, title: ‘属性‘ }, 
                    { field: ‘UnitCost‘, title: ‘成本价‘ }, 
                    { field: ‘ListPrice‘, title: ‘零售价‘ }, 
                    { field: ‘Status‘, title: ‘状态‘ }, 
                ]] 
            }); 
        }

        function changeP() { 
            var dg = $(‘#tt‘); 
            dg.datagrid(‘loadData‘, []); //重新加载数据 
            dg.datagrid({ pagePosition: $(‘#p-pos‘).val() }); //分页位置 
            dg.datagrid(‘getPager‘).pagination({ //分页样式、内容 
                layout: [‘list‘, ‘sep‘, ‘first‘, ‘prev‘, ‘sep‘, $(‘#p-style‘).val(), ‘sep‘, ‘next‘, ‘last‘, ‘sep‘, ‘refresh‘] 
            }); 
        } 
    </script>

    <p> 
        选择分页显示位置： 
        <select id="p-pos" onchange="changeP()"> 
            <option>bottom</option> 
            <option>top</option> 
            <option>both</option> 
        </select> 
        选择分页显示样式 
        <select id="p-style" onchange="changeP()"> 
            <option>manual</option> 
            <option>links</option> 
        </select> 
    </p> 
    
    <table id="tt"> 
    </table>