基于Jquery+Ajax+Json+高效分页

来源:互联网 发布:手机淘宝的旺旺号在哪 编辑:程序博客网 时间:2024/06/06 01:40
View Code <%@ WebHandler Language="C#" Class="GetData" %>using System;using System.Web;using System.Data.SqlClient;using System.Data;using System.Collections.Generic;using System.Web.Script.Serialization;public class GetData : IHttpHandler {        public void ProcessRequest (HttpContext context) {        context.Response.ContentType = "text/plain";        var pageIndex = context.Request["PageIndex"];        string connectionString = @"Data Source=KUSE\SQLEXPRESS;Initial Catalog=bookshop;Integrated Security=True";        //判断当前索引存不存在,如果不存在则获取记录的总数。        if (string.IsNullOrEmpty(pageIndex))        {            //获取查询记录总数的sql语句            string sql = "select count(-1) from books";            int count = 0;          int.TryParse(SqlHelper.ExecuteScalar(connectionString, System.Data.CommandType.Text, sql, null).ToString(), out count);            context.Response.Write(count);            context.Response.End();        }            //当根据索引获取数据        else        {            int currentPageIndex = 1;            int.TryParse(pageIndex, out currentPageIndex);            SqlParameter[] parms = new SqlParameter[] {         new SqlParameter("@FEILDS",SqlDbType.NVarChar,1000),        new SqlParameter("@PAGE_INDEX",SqlDbType.Int,10),        new SqlParameter("@PAGE_SIZE",SqlDbType.Int,10),        new SqlParameter("@ORDERTYPE",SqlDbType.Int,2),        new SqlParameter("@ANDWHERE",SqlDbType.VarChar,1000),        new SqlParameter("@ORDERFEILD",SqlDbType.VarChar,100)        };            parms[0].Value = "*";//获取所有的字段            parms[1].Value = pageIndex;//当前页面索引            parms[2].Value = 10;//页面大小            parms[3].Value = 0;//升序排列            parms[4].Value = "";//条件语句            parms[5].Value = "ID";//排序字段            List<Book> list = new List<Book>();            using (SqlDataReader sdr = SqlHelper.ExecuteReader(connectionString, CommandType.StoredProcedure, "PAGINATION", parms))            {                while (sdr.Read())                {                    list.Add(new Book { Title = sdr[2].ToString(), Auhor = sdr[2].ToString(), PublishDate = sdr[4].ToString(), ISBN = sdr[5].ToString() });                 }            }                        context.Response.Write(new JavaScriptSerializer().Serialize(list).ToString());//转为Json格式        }    }     public bool IsReusable {        get {            return false;        }    }}public class Book{    public string Title { get; set; }    public string Auhor { get; set; }    public string PublishDate { get; set; }    public string ISBN { get; set; }}

<body> <div > <table id="content">/*显示数据内容*/ </table> <div id="pager" class="yahoo2"></div>/*显示分页条*/ </div> </body>

View Code

  $(function () {

            $.post("GetData.ashx", null, function (data) {

                var total = data;                PageClick(1, total, 3);            });

            PageClick = function (pageIndex, total, spanInterval) {                $.ajax({                    url: "GetData.ashx",                    data: { "PageIndex": pageIndex },                    type: "post",                    dataType: "json",                    success: function (data) {

                        //索引从1开始                        //将当前页索引转为int类型                        var intPageIndex = parseInt(pageIndex);

                        //获取显示数据的表格                        var table = $("#content");                        //清楚表格中内容                        $("#content tr").remove();

                        //向表格中添加内容                        for (var i = 0; i < data.length; i++) {                            table.append(                                $("<tr><td>" +                                data[i].Title                                + "</td><td>" +                                data[i].Auhor                                + "</td><td>" +                                data[i].PublishDate                                + "</td><td>" +                                data[i].ISBN                                + "</td></tr>")                                );                        } //for

                        //创建分页                        //将总记录数结果 得到 总页码数                        var pageS = total                        if (pageS % 10 == 0) pageS = pageS / 10;                        else pageS = parseInt(total / 10) + 1;                        var $pager = $("#pager");

                        //清楚分页div中的内容                        $("#pager span").remove();                        $("#pager a").remove();

                        //添加第一页                        if (intPageIndex == 1)                            $pager.append("<span class='disabled'>第一页</span>");                        else {                            var first = $("<a href='javascript:void(0)' first='" + 1 + "'>第一页</a>").click(function () {                                PageClick($(this).attr('first'), total, spanInterval);                                return false;                            });                            $pager.append(first);                        }

                        //添加上一页                        if (intPageIndex == 1)                            $pager.append("<span class='disabled'>上一页</span>");                        else {                            var pre = $("<a href='javascript:void(0)' pre='" + (intPageIndex - 1) + "'>上一页</a>").click(function () {                                PageClick($(this).attr('pre'), total, spanInterval);                                return false;                            });                            $pager.append(pre);                        }

                        //设置分页的格式  这里可以根据需求完成自己想要的结果                        var interval = parseInt(spanInterval); //设置间隔                        var start = Math.max(1, intPageIndex - interval); //设置起始页                        var end = Math.min(intPageIndex + interval, pageS)//设置末页

                        if (intPageIndex < interval + 1) {                            end = (2 * interval + 1) > pageS ? pageS : (2 * interval + 1);                        }

                        if ((intPageIndex + interval) > pageS) {                            start = (pageS - 2 * interval) < 1 ? 1 : (pageS - 2 * interval);

                        }

                        //生成页码                        for (var j = start; j < end + 1; j++) {                            if (j == intPageIndex) {                                var spanSelectd = $("<span class='current'>" + j + "</span>");                                $pager.append(spanSelectd);                            } //if                             else {                                var a = $("<a href='javascript:void(0)'>" + j + "</a>").click(function () {                                    PageClick($(this).text(), total, spanInterval);                                    return false;                                });                                $pager.append(a);                            } //else                        } //for

                        //上一页                        if (intPageIndex == total) {                            $pager.append("<span class='disabled'>下一页</span>");

                        }                        else {

                            var next = $("<a href='javascript:void(0)' next='" + (intPageIndex + 1) + "'>下一页</a>").click(function () {                                PageClick($(this).attr("next"), total, spanInterval);                                return false;                            });                            $pager.append(next);                        }

                        //最后一页                        if (intPageIndex == pageS) {                            $pager.append("<span class='disabled'>最后一页</span>");

                        }                        else {                            var last = $("<a href='javascript:void(0)' last='" + pageS + "'>最后一页</a>").click(function () {                                PageClick($(this).attr("last"), total, spanInterval);                                return false;                            });                            $pager.append(last);                        }

                    } //sucess

                }); //ajax

            }; //function

        });   //ready

View Code

<style type="text/css">    DIV.yahoo2 {    PADDING-RIGHT: 3px; PADDING-LEFT: 3px; FONT-SIZE: 0.85em; PADDING-BOTTOM: 3px; MARGIN: 3px; PADDING-TOP: 3px; FONT-FAMILY: Tahoma,Helvetica,sans-serif; TEXT-ALIGN: center}DIV.yahoo2 A {    BORDER-RIGHT: #ccdbe4 1px solid; PADDING-RIGHT: 8px; BACKGROUND-POSITION: 50% bottom; BORDER-TOP: #ccdbe4 1px solid; PADDING-LEFT: 8px; PADDING-BOTTOM: 2px; BORDER-LEFT: #ccdbe4 1px solid; COLOR: #0061de; MARGIN-RIGHT: 3px; PADDING-TOP: 2px; BORDER-BOTTOM: #ccdbe4 1px solid; TEXT-DECORATION: none}DIV.yahoo2 A:hover {    BORDER-RIGHT: #2b55af 1px solid; BORDER-TOP: #2b55af 1px solid; BACKGROUND-IMAGE: none; BORDER-LEFT: #2b55af 1px solid; COLOR: #fff; BORDER-BOTTOM: #2b55af 1px solid; BACKGROUND-COLOR: #3666d4}DIV.yahoo2 A:active {    BORDER-RIGHT: #2b55af 1px solid; BORDER-TOP: #2b55af 1px solid; BACKGROUND-IMAGE: none; BORDER-LEFT: #2b55af 1px solid; COLOR: #fff; BORDER-BOTTOM: #2b55af 1px solid; BACKGROUND-COLOR: #3666d4}DIV.yahoo2 SPAN.current {    PADDING-RIGHT: 6px; PADDING-LEFT: 6px; FONT-WEIGHT: bold; PADDING-BOTTOM: 2px; COLOR: #000; MARGIN-RIGHT: 3px; PADDING-TOP: 2px}DIV.yahoo2 SPAN.disabled {    DISPLAY: none}DIV.yahoo2 A.next {    BORDER-RIGHT: #ccdbe4 2px solid; BORDER-TOP: #ccdbe4 2px solid; MARGIN: 0px 0px 0px 10px; BORDER-LEFT: #ccdbe4 2px solid; BORDER-BOTTOM: #ccdbe4 2px solid}DIV.yahoo2 A.next:hover {    BORDER-RIGHT: #2b55af 2px solid; BORDER-TOP: #2b55af 2px solid; BORDER-LEFT: #2b55af 2px solid; BORDER-BOTTOM: #2b55af 2px solid}DIV.yahoo2 A.prev {    BORDER-RIGHT: #ccdbe4 2px solid; BORDER-TOP: #ccdbe4 2px solid; MARGIN: 0px 10px 0px 0px; BORDER-LEFT: #ccdbe4 2px solid; BORDER-BOTTOM: #ccdbe4 2px solid}DIV.yahoo2 A.prev:hover {    BORDER-RIGHT: #2b55af 2px solid; BORDER-TOP: #2b55af 2px solid; BORDER-LEFT: #2b55af 2px solid; BORDER-BOTTOM: #2b55af 2px solid}        </style>


原创粉丝点击