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MVC异步分页

2024-07-02 18:36:23   225人阅读

如图：

 

1: 控制器代码

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//
        // GET: /AjaxUser/
        shopEntities shop = new shopEntities();
        public ActionResult Index()
        {
            return View();
        }
 
        public ActionResult loadjson()
        {
            int pageSize = Request["pageSize"] == null ? 10 : int.Parse(Request["pageSize"]);
            int pageIndex = Request["pageIndex"] == null ? 1 : int.Parse(Request["pageIndex"]);
            int totalCount = shop.tbl_admin.Count();
 
            //给前台userinfo所有的数据，并且是json格式
            var allorder = shop.tbl_admin.OrderBy(u=>u.id)
                .Skip(pageSize*(pageIndex-1))
                .Take(pageSize)
                .ToList();
            //接受一个对像，内部把此对象使用javaScript序列化类对象志字符串，发送到前台
 
            var data = http://www.mamicode.com/from u in allorder select new { u.id,u.realname,u.sex};
 
            string strNav = PageNavHelper.ShowPageNavigate(pageIndex,pageSize,totalCount);
 
            var result = new {Data=http://www.mamicode.com/data, NavStr=strNav };
            return Json(result, JsonRequestBehavior.AllowGet);
        }

　　

 

2：Html代码

@{
    Layout = null;
}

<!DOCTYPE html>

<html>
<head>
    <meta name="viewport" content="width=device-width" />
   
    <title>Index</title>
    <link href="http://www.mamicode.com/~/Content/NavPage.css" rel="stylesheet" />
    <script src="http://www.mamicode.com/~/Scripts/jquery-1.8.2.min.js"></script>
    <script src="http://www.mamicode.com/~/Scripts/jquery-ui-1.8.24.js"></script>
    <script src="http://www.mamicode.com/~/Scripts/jquery.easyui.min.js"></script>
    <script src="http://www.mamicode.com/~/Scripts/jquery.unobtrusive-ajax.js"></script>
    <script src="http://www.mamicode.com/~/Scripts/jquery.validate.unobtrusive.js"></script>

    <script type="text/javascript">
        $(function () {
            //页面加载完成后从后如加载当前页数据
            initTable();
        });

        //初始化表格数据
        function initTable(queryData) 
        {
            $.getJSON("/AjaxUser/loadjson",queryData, function (data) {
                var tb = $("#tbList");
                //先移除旧的，添加新的
                $("#tbList tr[type=data]").remove();
                for (var i = 0; i < data.Data.length; i++)
                { 
                    var strTr = "<tr type=‘data‘>";
                    strTr += "<td>" + data.Data[i].id + "</td>";
                    strTr += "<td>" + data.Data[i].realname + "</td>";
                    strTr += "<td>" + data.Data[i].sex + "</td>";
                    strTr += "<td><a UId=‘" + data.Data[i].id + "‘ href=‘javascript:void(0)‘>修改</a>" +
                        "<a UId=‘" + data.Data[i].ID + "‘ href=‘javascript:void(0)‘>删除</a></td>";
                    strTr += "</tr>";
                    tb.append(strTr);
                }
                $("#Nav").html(data.NavStr);

                //绑定分页标签的点击事件
                $(".pageLink").click(function () {
                    //把页码弹出来
                    var strHref = http://www.mamicode.com/$(this).attr("href");
                    var queryStr = strHref.substr(strHref.indexOf(‘?‘) + 1);
                    //alert(queryStr);
                    initTable(queryStr);
                    return false;
                });
            });
        }
    </script>
</head>
<body>
    <div>
        <table id="tbList">
            <tr>
                <td>id</td>
                <td>姓名</td>
                <td>性别</td>
                <td>操作</td>
            </tr>
        </table>

        <div id="Nav" class="paginator">

        </div>
        
    </div>
</body>
</html>

　　3：分页类

 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web;

namespace MvcTest4.Models
{
    public class PageNavHelper
    {
        //主要就是输出分页的超级链接的标签
        //自定义分页Helper扩展
        public static string ShowPageNavigate(int currentPage, int pageSize, int totalCount)
        {
            var redirectTo = HttpContext.Current.Request.Url.AbsolutePath;
            pageSize = pageSize <= 0 ? 3 : pageSize;
            var totalPages = Math.Max((totalCount + pageSize - 1) / pageSize, 1); //总页数
            var output = new StringBuilder();
            if (totalPages > 1)
            {
                //if (currentPage != 1)
                {//处理首页连接
                    output.AppendFormat("<a class=‘pageLink‘ href=http://www.mamicode.com/‘{0}?pageIndex=1&pageSize={1}‘>首页", redirectTo, pageSize);
                }
                if (currentPage > 1)
                {//处理上一页的连接
                    output.AppendFormat("<a class=‘pageLink‘ href=http://www.mamicode.com/‘{0}?pageIndex={1}&pageSize={2}‘>上一页", redirectTo, currentPage - 1, pageSize);
                }
                else
                {
                    // output.Append("<span class=‘pageLink‘>上一页</span>");
                }

                output.Append(" ");
                int currint = 5;
                for (int i = 0; i <= 10; i++)
                {//一共最多显示10个页码，前面5个，后面5个
                    if ((currentPage + i - currint) >= 1 && (currentPage + i - currint) <= totalPages)
                    {
                        if (currint == i)
                        {//当前页处理
                            //output.Append(string.Format("[{0}]", currentPage));
                            output.AppendFormat("<a class=‘cpb‘ href=http://www.mamicode.com/‘{0}?pageIndex={1}&pageSize={2}‘>{3}", redirectTo, currentPage, pageSize, currentPage);
                        }
                        else
                        {//一般页处理
                            output.AppendFormat("<a class=‘pageLink‘ href=http://www.mamicode.com/‘{0}?pageIndex={1}&pageSize={2}‘>{3}", redirectTo, currentPage + i - currint, pageSize, currentPage + i - currint);
                        }
                    }
                    output.Append(" ");
                }
                if (currentPage < totalPages)
                {//处理下一页的链接
                    output.AppendFormat("<a class=‘pageLink‘ href=http://www.mamicode.com/‘{0}?pageIndex={1}&pageSize={2}‘>下一页", redirectTo, currentPage + 1, pageSize);
                }
                else
                {
                    //output.Append("<span class=‘pageLink‘>下一页</span>");
                }
                output.Append(" ");
                if (currentPage != totalPages)
                {
                    output.AppendFormat("<a class=‘pageLink‘ href=http://www.mamicode.com/‘{0}?pageIndex={1}&pageSize={2}‘>末页", redirectTo, totalPages, pageSize);
                }
                output.Append(" ");
            }
            output.AppendFormat("第{0}页 / 共{1}页", currentPage, totalPages);//这个统计加不加都行

            return output.ToString();
        }
    }
}

　　4：分页CSS

 

body {
}

.paginator {
    font: 12px Arial, Helvetica, sans-serif;
    padding: 10px 20px 10px 0;
    margin: 0px;
}

    .paginator a {
        border: solid 1px #ccc;
        color: #0063dc;
        cursor: pointer;
        text-decoration: none;
    }

        .paginator a:visited {
            padding: 1px 6px;
            border: solid 1px #ddd;
            background: #fff;
            text-decoration: none;
        }

    .paginator .cpb {
        border: 1px solid #F50;
        font-weight: 700;
        color: #F50;
        background-color: #ffeee5;
    }

    .paginator a:hover {
        border: solid 1px #F50;
        color: #f60;
        text-decoration: none;
    }

    .paginator a, .paginator a:visited, .paginator .cpb, .paginator a:hover {
        float: left;
        height: 16px;
        line-height: 16px;
        min-width: 10px;
        _width: 10px;
        margin-right: 5px;
        text-align: center;
        white-space: nowrap;
        font-size: 12px;
        font-family: Arial,SimSun;
        padding: 0 3px;
    }

　　


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