Ajax无刷新分页

　　

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
{
    /// 

    /// PagedService 的摘要说明
    /// 
    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 list = new List();//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

 

转载于:https://www.cnblogs.com/blackHorseplan/p/3907010.html