当点击datagrid的标题，视图传递给Controller的Form
Data类似这样：page=1&rows=10&sort=CustomerID&order=asc。为了应对变化，把关于分页的封装成基类，其他关于排序或搜索的封装成继承该基类的子类。再把这些子类对象实例传递给服务层方法。
展开 //显示表相关
public class Customer
{
public int CustomerID { get; set; }
public string CompanyName { get; set; }
public string ContactName { get; set; }
public string ContactTitle { get; set; }
public string Address { get; set; }
public string City { get; set; }
public string Region { get; set; }
public string Country { get; set; }
public string Phone { get; set; }
public string Fax { get; set; }
}
//关于分页封装成基类
public class PageParam
{
public int PageSize { get; set; }
public int PageIndex { get; set; }
}
//关于搜索或排序封装成子类
public class CustomerParam : PageParam
{
public string SortProperty { get; set; }
public bool Order { get; set; }
}
展开using System;
using System.Collections;
using System.Linq;
using DataGridInMVC2.Models;
using System.Collections.Generic;
namespace DataGridInMVC2.Helpers
{
public class Service
{
//获取Customer列表
public IEnumerable<Customer> LoadPageCustomers(CustomerParam param, out int total)
{
var customers = InitializeCustomers();
total = customers.Count();
//考虑排序
//CustomerID,CompanyName,ContactName,ContactTitle,Address,Fax,Phone,City
switch (param.SortProperty)
{
case "CustomerID":
return customers.OrderByWithDirection(c => c.CustomerID, param.Order)
.Skip(param.PageSize * (param.PageIndex - 1))
.Take(param.PageSize);
break;
case "CompanyName":
return customers.OrderByWithDirection(c => c.CompanyName, param.Order)
.Skip(param.PageSize * (param.PageIndex - 1))
.Take(param.PageSize);
break;
case "ContactName":
return customers.OrderByWithDirection(c => c.ContactName, param.Order)
.Skip(param.PageSize * (param.PageIndex - 1))
.Take(param.PageSize);
break;
case "ContactTitle":
return customers.OrderByWithDirection(c => c.ContactTitle, param.Order)
.Skip(param.PageSize * (param.PageIndex - 1))
.Take(param.PageSize);
break;
case "Address":
return customers.OrderByWithDirection(c => c.Address, param.Order)
.Skip(param.PageSize * (param.PageIndex - 1))
.Take(param.PageSize);
break;
case "Fax":
return customers.OrderByWithDirection(c => c.Fax, param.Order)
.Skip(param.PageSize * (param.PageIndex - 1))
.Take(param.PageSize);
break;
case "Phone":
return customers.OrderByWithDirection(c => c.Phone, param.Order)
.Skip(param.PageSize * (param.PageIndex - 1))
.Take(param.PageSize);
break;
case "City":
return customers.OrderByWithDirection(c => c.City, param.Order)
.Skip(param.PageSize * (param.PageIndex - 1))
.Take(param.PageSize);
break;
default:
return customers.OrderByWithDirection(c => c.CustomerID, param.Order)
.Skip(param.PageSize * (param.PageIndex - 1))
.Take(param.PageSize);
break;
}
}
//初始化Customer
public IEnumerable<Customer> InitializeCustomers()
{
var customers = new List<Customer>();
for (int i = 0; i < 35; i++)
{
customers.Add(new Customer()
{
CustomerID = i + 1,
CompanyName = "Company" + Convert.ToString(i + 1),
ContactName = "ContactName" + Convert.ToString(i + 1),
ContactTitle = "ContactTitle" + Convert.ToString(i + 1),
Address = "Address" + Convert.ToString(i + 1),
City = "City" + Convert.ToString(i + 1),
Country = "China",
Fax = "010-878789" + Convert.ToString(i + 1),
Phone = "010-989876" + Convert.ToString(i + 1),
Region = "Qingdao"
});
}
return customers;
}
}
}
using System.Linq;
namespace DataGridInMVC2.Helpers
{ public static class SortExtension
{
public static IOrderedEnumerable<TSource> OrderByWithDirection<TSource, TKey>(
this IEnumerable<TSource> source,
System.Func<TSource, TKey> keySelector,
bool descending)
{ return descending ? source.OrderByDescending(keySelector) : source.OrderBy(keySelector);
}
}
}
展开using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using DataGridInMVC2.Helpers;
using DataGridInMVC2.Models;
namespace DataGridInMVC2.Controllers
{
public class CustomerController : Controller
{
public ActionResult Index()
{
return View();
}
public ActionResult GetData()
{
//接收datagrid传来的参数
//page=1&rows=10&sort=CustomerID&order=asc
int pageIndex = int.Parse(Request["page"]);
int pageSize = int.Parse(Request["rows"]);
string sortProperty = Request["sort"];
bool order = Request["order"] == "asc" ? false : true;
//构建服务类方法所需要的参数实例
var temp = new CustomerParam()
{
PageIndex = pageIndex,
PageSize = pageSize,
SortProperty = sortProperty,
Order = order
};
var service = new Service();
int totalNum = 0;
var customers = service.LoadPageCustomers(temp, out totalNum);
var result = from customer in customers
select new
{
customer.CustomerID,
customer.CompanyName,
customer.ContactName,
customer.ContactTitle,
customer.Country,
customer.Region,
customer.Address,
customer.Fax,
customer.Phone,
customer.City
};
var jsonResult = new {total = totalNum, rows = result};
//序列化成json字符串
string str = JsonSerializeHelper.SerializeToJson(jsonResult);
return Content(str);
}
}
}
展开@{
ViewBag.Title = "Index";
Layout = "~/Views/Shared/_Layout.cshtml";
}
<link href="~/Content/themes/default/easyui.css" rel="stylesheet" />
<link href="~/Content/themes/icon.css" rel="stylesheet" />
<table id="tt"></table>
@section scripts
{
<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(params) {
$(‘#tt‘).datagrid({
url: ‘@Url.Action("GetData","Customer")‘,
width: 730,
height: 400,
title: ‘Customer列表‘,
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: [[
//CustomerID,CompanyName,ContactName,ContactTitle,Country,Region,Address,Fax,Phone,City
{ field: ‘CustomerID‘, title: ‘编号‘,sortable: true },
{ field: ‘CompanyName‘, title: ‘客户名称‘, sortable: true },
{ field: ‘ContactName‘, title: ‘联系人名称‘, sortable: true },
{ field: ‘ContactTitle‘, title: ‘职位‘, sortable: true },
{ field: ‘Address‘, title: ‘地址‘, sortable: true },
{ field: ‘City‘, title: ‘城市名称‘, sortable: true },
{ field: ‘Region‘, title: ‘区域‘ },
{ field: ‘Country‘, title: ‘国家‘ },
{ field: ‘Phone‘, title: ‘电话‘, sortable: true },
{ field: ‘Fax‘, title: ‘传真‘, sortable: true }
]],
queryParams: params, //搜索json对象
sortName: ‘CustomerID‘, //初始排序字段
sortOrder: ‘asc‘ //初始排序方式
});
}
</script>
}
