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这篇文章将为大家详细讲解有关JQuery中怎么实现一个分页程序,文章内容质量较高,因此小编分享给大家做个参考,希望大家阅读完这篇文章后对相关知识有一定的了解。
首先Default.aspx页面需要引用的JS文件
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="width:30px;"><input onclick="checkAllLine()" id="checkedAll" name="checkedAll" type="checkbox" title="全部选择/全部不选" /></th> <th scope="col" style="width: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="width:500px;"> </div><br /> <div id="ajaxPageBar" style="width:500px;"> </div>
$T.record.Id 中Id对应的是实体类Id属性
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++) { theStringtheString = 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 </span>"); sb.Append("<span class='total_count'>共" + countNum.ToString() + "条记录/" + pageCount.ToString() + "页 </span>"); if (countNum > pageSize) { if (currentPage != 1)//只要不是***页 sb.Append("<a target='_self' href='" + GetPageUrl(currentPage - 1, Http1, HttpM, HttpN, limitPage) + "' title='上一页'>«</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***一页 sb.Append("<a target='_self' href='" + GetPageUrl(currentPage + 1, Http1, HttpM, HttpN, limitPage) + "' title='下一页'>»</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()); } }
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