jqurty

JQuery实现分页程序代码，源码下载

 

Web开发，分页在所难免的，微软GridView、AspPager等设置分页数据可以自动分页，但是这里浏览器会闪动，用户体验不是很友好，在此我整理了JQuery实现分页，并且使用

JQuery模板显示数据,用户体验很友好

项目结构：

jquery.tools.pack.js是Jquery数据显示模板

Default.aspx显示分页数据，Member_Ajax.aspx是将数据已JSON格式输出到页面，PageBar.cs分页工具条，Student.cs实体类

首先Default.aspx页面需要引用的JS文件

JQuery采用 1.4.1.1 下载地址：http://pan.baidu.com/share/link?shareid=3024434948&uk=2920032010

JQuery数据显示模板JS 下载地址：http://pan.baidu.com/share/link?shareid=3030793948&uk=2920032010

分页按钮样式 下载地址：http://pan.baidu.com/share/link?shareid=3146737028&uk=2920032010

Default.aspx页面js代码，如下,每页条数可以自定义，也可以放置配置文件中，queryString函数是根据URL参数名称，获取参数的值

<script type="text/javascript">
        var pagesize = 10;
        var page = thispage();
        $(document).ready(function () {
            ajaxList(page);
        });

        function queryString(pname) {
            var query = location.search.substring(1);
            var str = "";
            params = query.split("&");
            if (params.length > 0) {
                for (var n in params) {
                    var pairs = params[n].split("=");
                    if (pairs[0] == pname) {
                        str = pairs[1];
                        break;
                    }
                }
            }
            return str;
        }

        function thispage() {
            var r = /^[1-9][0-9]*$/;
            if (queryString('page') == '') return 1;
            if (r.test(queryString('page')))
                return parseInt(queryString('page'));
            else
                return 1;
        }

        function ajaxList(currentpage) {
            if (currentpage != null) page = currentpage;
            $.ajax({
                type: "get",//get类型，获取用QueryString方法，post类型，用Form获取传值
                dataType: "json",
                data: "pageIndex=" + currentpage + "&pagesize=" + pagesize + "&clienttt=" + Math.random(),
                url: "Member_Ajax.aspx",
                error: function (XmlHttpRequest, textStatus, errorThrown) { alert(XmlHttpRequest.responseText); },
                success: function (d) {
                    switch (d.result) {
                        case '-1':
                            Alert(d.returnval);
                            break;
                        case '0':
                            Alert(d.returnval);
                            break;
                        case '1':
                            $("#ajaxList").setTemplateElement("tplList", null, { filter_data: true });
                            $("#ajaxList").processTemplate(d);
                            $("#ajaxPageBar").html(d.pagebar);
                            break;
                    }
                }
            });
        }

 </script>

  Default.aspx页面Form代码如下，页面数据使用JQuery jTemplates绑定数据，非常方便，只需设置JSON格式数据，引用JS文件即可

<textarea id="tplList" style="display: none">
            <table class="cooltable" width="300px">
            <thead>
                <tr>
                    <th align="center" scope="col" style="30px;"><input onclick="checkAllLine()" id="checkedAll" name="checkedAll" type="checkbox" title="全部选择/全部不选" /></th>
                    <th scope="col" style="60px;">ID</th>
                    <th width="120px">姓名</th>
                    <th scope="col" width="60px">年龄</th>
                    
               </tr>
            </thead>
            <tbody>
    {#foreach $T.table as record}
    <tr>
        <td align="center">
            <input class="checkbox" name="selectID" type="checkbox" value='{$T.record.MemberNo}' />
        </td>
        <td align="center">{$T.record.Id}</td>
        <td align="left">
            {$T.record.Name}
        </td>
        <td align="left">
            {$T.record.Age}
        </td>
    </tr>
    {#/for}
</tbody>
            </table>
     </textarea>
    <div id="ajaxList" style="500px;">
    </div><br />
    <div id="ajaxPageBar" style="500px;">
    </div>

$T.table.Id 中Id对应的是实体类Id属性,table是json格式中list集合名称

上面Javascript方法中用到Member_Ajax.aspx页面代码如下，注意：这里是将数据已JSON格式输出到页面，配合JQuery数据模板使用，所有Member_Ajax.aspx页面，不应该包含Html标签，其代码格式如下

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Member_Ajax.aspx.cs" Inherits="Nick.Kuang.Web.Member_Ajax" %>

Member_Ajax.aspx cs页面代码

protected void Page_Load(object sender, EventArgs e)
        {
            Response.Write(GetAll());
        }

        private string GetAll()
        {
            List<Student> list = new List<Student>();

            for (int i = 0; i < 100; i++)
            {
                list.Add(new Student { Id = i, Name = "Name" + i, Age = i });
            }
            
            int pageIndex = GetPage();
            int pageSize = StrToInt(QueryString("pagesize"), 10); ;
            JavaScriptSerializer javascriptSerializer = new JavaScriptSerializer();

            string result = javascriptSerializer.Serialize(list.Skip(pageSize * (pageIndex - 1)).Take(pageSize).ToList());
            string response = "{\"result\" :\"1\"," +
                "\"returnval\" :\"操作成功\"," +
                "\"pagebar\" :\"" + PageBar.GetPageBar(3, "js", 2, list.Count, pageSize, pageIndex, "javascript:ajaxList(<#page#>);") + "\"," +
               "\"" + "totalCountStr" + "\":" + 10 + ",\"" + "table" + "\":" + result + 
                "}";
            return response;
        }

        private static int GetPage()
        {
            int page = StrToInt(QueryString("pageIndex"), 0) < 1 ? 1 : StrToInt(QueryString("pageIndex"), 0);
            return page;
        }

        private static int StrToInt(string value, int defaultValue)
        {
            if (IsNumeric(value))
                return int.Parse(value);
            else
                return defaultValue;
        }

        /// <summary>
        /// 获取querystring
        /// </summary>
        /// <param name="s">参数名</param>
        /// <returns>返回值</returns>
        private static string QueryString(string s)
        {
            if (HttpContext.Current.Request.QueryString[s] != null && HttpContext.Current.Request.QueryString[s] != "")
            {
                return SafetyQueryS(HttpContext.Current.Request.QueryString[s].ToString());
            }
            return string.Empty;
        }

        /// <summary>
        /// 将字符串中的一些标签过滤
        /// </summary>
        /// <param name="theString"></param>
        /// <returns></returns>
        private static string SafetyQueryS(string theString)
        {
            string[] aryReg = { "'", ";", "\"", "\r", "\n", "<", ">" };
            for (int i = 0; i < aryReg.Length; i++)
            {
                theString = theString.Replace(aryReg[i], string.Empty);
            }
            return theString;
        }

        private static bool IsNumeric(string value)
        {
            System.Text.RegularExpressions.Regex myRegex = new System.Text.RegularExpressions.Regex("^[-]?[1-9]*[0-9]*$");
            if (value.Length == 0)
            {
                return false;
            }
            return myRegex.IsMatch(value);
        }

使用JavaScriptSerializer中的Serialize方法可以将Object类型数据转换成JSON格式的数据，告别以前拼接成字串的方法

Student实体类代码属性

public class Student
    {
        public int Id { get; set; }

        public string Name { get; set; }

        public int Age { get; set; }
    }

分页中用到的PageBar类代码，分页调用Default.aspx中ajaxList函数，实现无刷新分页

public class PageBar
    {
        /// <summary>
        /// 完整模式：数字+上下页+首末+总记录信息+指定页码翻转
     /// </summary>
        /// <param name="stype"></param>
        /// <param name="stepNum"></param>
        /// <param name="pageRoot"></param>
        /// <param name="pageFoot"></param>
        /// <param name="countNum"></param>
        /// <param name="currentPage"></param>
        /// <param name="Http1"></param>
        /// <param name="HttpM"></param>
        /// <param name="HttpN"></param>
        /// <param name="limitPage"></param>
        /// <returns></returns>
        private static string GetDetailbar(string stype, int stepNum, int pageRoot, int pageFoot, int pageCount, int countNum, int pageSize, int currentPage, string Http1, string HttpM, string HttpN, int limitPage)
        {
            StringBuilder sb = new StringBuilder();
            sb.Append("<div class='p_btns'>");
            //sb.Append("<span class='total_count'>共" + countNum.ToString() + "条，当前第" + currentPage.ToString() + "/" + pageCount.ToString() + "页&nbsp;&nbsp;&nbsp;</span>");
            sb.Append("<span class='total_count'>共" + countNum.ToString() + "条记录/" + pageCount.ToString() + "页&nbsp;&nbsp;</span>");
            if (countNum > pageSize)
            {
                if (currentPage != 1)//只要不是第一页
                    sb.Append("<a target='_self' href='" + GetPageUrl(currentPage - 1, Http1, HttpM, HttpN, limitPage) + "' title='上一页'>&laquo;</a>");
                if (pageRoot > 1)
                {
                    sb.Append("<a target='_self' href='" + GetPageUrl(1, Http1, HttpM, HttpN, limitPage) + "'>1..</a>");
                }
                if (stepNum > 0)
                {
                    for (int i = pageRoot; i <= pageFoot; i++)
                    {
                        if (i == currentPage)
                            sb.Append("<span class='currentpage'>" + i.ToString() + "</span>");
                        else
                            sb.Append("<a target='_self' href='" + GetPageUrl(i, Http1, HttpM, HttpN, limitPage) + "'>" + i.ToString() + "</a>");
                        if (i == pageCount)
                            break;
                    }
                }
                if (pageFoot < pageCount)
                {
                    sb.Append("<a target='_self' href='" + GetPageUrl(pageCount, Http1, HttpM, HttpN, limitPage) + "'>.." + pageCount + "</a>");

                }
                if (currentPage != pageCount)//只要不是最后一页
                    sb.Append("<a target='_self' href='" + GetPageUrl(currentPage + 1, Http1, HttpM, HttpN, limitPage) + "' title='下一页'>&raquo;</a>");
                if (stype == "html")
                    sb.Append("<span class='jumppage'>转到第 <input type='text' name='custompage' size='2' onkeyup=\"this.value=this.value.replace(/\\D/g,'')\" onafterpaste=\"this.value=this.value.replace(/\\D/g,'')\" onkeydown=\"if(event.keyCode==13) {window.location='" + HttpN + "'.replace('<#page#>',this.value); return false;}\" /> 页</span>");
            }
            sb.Append("</div>");
            return sb.ToString();
        }

        /// <summary>
        /// 分页导航
        /// </summary>
        /// <param name="mode">支持1=simple,2=normal,3=full</param>
        /// <param name="stype">html/js,只有当stype为html且mode为3的时候显示任意页的转向</param>
        /// <param name="stepNum">步数,如果步数为i，则每页的数字导航就有2i+1</param>
        /// <param name="countNum">记录总数</param>
        /// <param name="pageSize">每页记录数</param>
        /// <param name="currentPage">当前页码</param>
        /// <param name="Http1">第1页的链接地址模板，支持js</param>
        /// <param name="HttpM">第M页的链接地址模板，支持js,M不大于limitPage</param>
        /// <param name="HttpN">第N页的链接地址模板，支持js,N大于limitPage</param>
        /// <param name="limitPage"></param>
        /// <returns></returns>
        public static string GetPageBar(int mode, string stype, int stepNum, int countNum, int pageSize, int currentPage, string Http1, string HttpM, string HttpN, int limitPage)
        {
            string pagebar = "";
            //if (countNum > pageSize)
            //{
            int pageCount = countNum % pageSize == 0 ? countNum / pageSize : countNum / pageSize + 1;
            currentPage = currentPage > pageCount ? pageCount : currentPage;
            currentPage = currentPage < 1 ? 1 : currentPage;
            int stepageSize = stepNum * 2;
            int pageRoot = 1;
            int pageFoot = pageCount;
            pageCount = pageCount == 0 ? 1 : pageCount;
            if (pageCount - stepageSize < 1)//页数比较少
            {
                pageRoot = 1;
                pageFoot = pageCount;
            }
            else
            {
                pageRoot = currentPage - stepNum > 1 ? currentPage - stepNum : 1;
                pageFoot = pageRoot + stepageSize > pageCount ? pageCount : pageRoot + stepageSize;
                pageRoot = pageFoot - stepageSize < pageRoot ? pageFoot - stepageSize : pageRoot;
            }
           
            pagebar = GetDetailbar(stype, stepNum, pageRoot, pageFoot, pageCount, countNum, pageSize, currentPage, Http1, HttpM, HttpN, limitPage);
                 
            return pagebar;
        }

        public static string GetPageBar(int mode, string stype, int stepNum, int countNum, int pageSize, int currentPage, string HttpN)
        {
            return GetPageBar(mode, stype, stepNum, countNum, pageSize, currentPage, HttpN, HttpN, HttpN, 0);
        }

        public static string GetPageUrl(int chkPage, string Http1, string HttpM, string HttpN, int limitPage)
        {
            string Http = string.Empty;
            if (chkPage == 1)
                Http = Http1;
            else
                Http = (chkPage > limitPage || limitPage == 0) ? HttpN : HttpM;
            return Http.Replace("<#page#>", chkPage.ToString());
        }
    }    

最后的效果是，如下图