标签:blog http java os io 数据 for ar
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title></title> <script src="Scripts/jquery-1.4.1.js" type="text/javascript"></script> </head> <body> <ul id="ulcomment"></ul> <table> <tr id="trPage"></tr> </table> <script type="text/javascript"> $.post("PagedService.ashx", { "action": "getpagecount" }, function (data, status) { for (var i = 1; i <= data; i++) { var td = $("<td> <a href=‘‘>" + i + "</a></td>"); $("#trPage").append(td); } $("#trPage td").click(function (e) { e.preventDefault(); //不要超链接起作用 $.post("PagedService.ashx", { "action": "getpagedata", "pagenum": $(this).text() }, function (data, status) { var comments = $.parseJSON(data); $("#ulcomment").empty(); for (var i = 0; i < comments.length; i++) { var comment = comments[i]; var li = $("<li>提交时间:" + comment.PostDate + "评论" + comment.Msg + "</li>"); $("#ulcomment").append(li); } }); }); }); $.post("PagedService.ashx", { "action": "getpagedata", "pagenum": "1" },//初始化的默认第一页 function (data, status) { var comments = $.parseJSON(data); $("#ulcomment").empty(); for (var i = 0; i < comments.length; i++) { var comment = comments[i]; var li = $("<li>提交时间:" + comment.PostDate + "评论" + comment.Msg + "</li>"); $("#ulcomment").append(li); } }) </script> </body> </html>
using System; using System.Collections.Generic; using System.Linq; using System.Web; using Ajax翻页.DAL.DataSetCommentTableAdapters; using System.Web.Script.Serialization; namespace Ajax翻页 { /// <summary> /// PagedService 的摘要说明 /// </summary> public class PagedService : IHttpHandler { public void ProcessRequest(HttpContext context) { context.Response.ContentType = "text/plain"; string action = context.Request["action"]; if (action=="getpagecount") { var adapter = new T_CommentsTableAdapter(); int count = adapter.SelectCount().Value; int pagecount = count / 10; if (count%10!=0) { pagecount++; } context.Response.Write(pagecount); } else if (action == "getpagedata") { string getpagedata = context.Request["pagenum"];//获得传过来的页数 int IPageNUm = Convert.ToInt32(getpagedata); var adapter = new T_CommentsTableAdapter();//获得adapter var data = adapter.GetPagedData((IPageNUm - 1) * 10 + 1, (IPageNUm) * 10);//根据页数获得数据 List<Comment> list = new List<Comment>();//创建list foreach (var item in data)//在list中循环输入Comment属性PostDate,Msg { list.Add(new Comment() { PostDate = item.PostDate.ToShortDateString(), Msg=item.Msg }); } JavaScriptSerializer jss = new JavaScriptSerializer();//序列化list为json context.Response.Write(jss.Serialize(list)); } } public bool IsReusable { get { return false; } } } public class Comment { public string PostDate { get; set; } public string Msg { get; set; } } }
select *from(
SELECT Id, PostDate, Msg,Row_Number()over(order by PostDate)rownum FROM dbo.T_Comments
)t
where t.rownum>=@startRowIndex and t.rownum<@endRowIndex
标签:blog http java os io 数据 for ar
原文地址:http://www.cnblogs.com/blackHorseplan/p/3907010.html