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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
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
$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() { Listlist = new List (); 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; } /// /// 获取querystring /// /// 参数名 ///返回值 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; } ////// 将字符串中的一些标签过滤 /// /// ///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 { ////// 完整模式:数字+上下页+首末+总记录信息+指定页码翻转 /// /// /// /// /// /// /// /// /// /// /// ///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(" "); //sb.Append("共" + countNum.ToString() + "条,当前第" + currentPage.ToString() + "/" + pageCount.ToString() + "页 "); sb.Append("共" + countNum.ToString() + "条记录/" + pageCount.ToString() + "页 "); if (countNum > pageSize) { if (currentPage != 1)//只要不是***页 sb.Append("«"); if (pageRoot > 1) { sb.Append("1.."); } if (stepNum > 0) { for (int i = pageRoot; i <= pageFoot; i++) { if (i == currentPage) sb.Append("" + i.ToString() + ""); else sb.Append("" + i.ToString() + ""); if (i == pageCount) break; } } if (pageFoot < pageCount) { sb.Append(".." + pageCount + ""); } if (currentPage != pageCount)//只要不是***一页 sb.Append("»"); if (stype == "html") sb.Append("转到第 ',this.value); return false;}\" /> 页"); } sb.Append(""); return sb.ToString(); } ////// 分页导航 /// /// 支持1=simple,2=normal,3=full /// html/js,只有当stype为html且mode为3的时候显示任意页的转向 /// 步数,如果步数为i,则每页的数字导航就有2i+1 /// 记录总数 /// 每页记录数 /// 当前页码 /// 第1页的链接地址模板,支持js /// 第M页的链接地址模板,支持js,M不大于limitPage /// 第N页的链接地址模板,支持js,N大于limitPage /// ///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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