ajax無(wú)刷新分頁(yè)的簡(jiǎn)單實(shí)現(xiàn)

html>
head>
  title>/title>
      style type="text/css">
  table{ border:solid 1px #444; background-color:Aqua;}
  table td{border:solid 1px #444;}
  /style>
  script src="js/Jquery1.7.js" type="text/javascript">/script>
  script type="text/javascript">
    $(function () {
      var pageindex = 1;
      var pagesize = 10;
      /*如果將代碼封裝成一個(gè)函數(shù)，那么除非顯示調(diào)用(loaddata())，否則函數(shù)中的代碼不會(huì)執(zhí)行
      根據(jù)傳遞的頁(yè)碼和每頁(yè)顯示的記錄數(shù)量獲取數(shù)據(jù)
      */
      function loaddata() {
        $.ajax({
          type: "post",
          contentType: "application/json",
          url: "WebService1.asmx/GetListAjax",
          data: "{pagesize:" + pagesize + ",pageindex:" + pageindex + "}",
          success: function (result) {
            //處理返回來(lái)的數(shù)據(jù)
            var strtable = 'table>';
            strtable += 'tr>td>編號(hào)/td>td>標(biāo)題/td>td>內(nèi)容/td>td>創(chuàng)建時(shí)間/td>/tr>';
            for (var i = 0; i  result.d.length; i++) {


              strtable += 'tr>';
              strtable += 'td>' + result.d[i].Id + '/td>';
              strtable += 'td>' + result.d[i].NewsTitle + '/td>';
              strtable += 'td>' + result.d[i].NewsContent + '/td>'
              strtable += 'td>' + result.d[i].CreateTime + '/td>';
              strtable += '/tr>';
            }
            strtable += '/table>';
            $('#mydiv').html(strtable);
          }


        })


      }
      //根據(jù)傳遞到后臺(tái)的每頁(yè)顯示的記錄數(shù)量來(lái)獲取最大的頁(yè)碼(就是一共有多少頁(yè))
      $.ajax({
        type: "post",
        contentType: "application/json",
        url: "WebService1.asmx/GetLastPageindex",
        data: "{pagesize:" + pagesize + "}",
        success: function (result) {
          lastpageindex = result.d;
        }
      })


      //顯式調(diào)用函數(shù)，在頁(yè)面初次加載時(shí)加載第一頁(yè)數(shù)據(jù)
      loaddata();
      //下一頁(yè)
      $('a:eq(2)').click(function () {
        if (pageindex  lastpageindex) {
          pageindex++;
          loaddata();
        }


      })
      //上一頁(yè)
      $('a:eq(1)').click(function () {
        if (pageindex > 1) {
          pageindex--;
          loaddata();
        }
      })
      //第一頁(yè)
      $('a:first').click(function () {
        pageindex = 1;
        loaddata();
      })
      //最后一頁(yè)
      $('a:eq(3)').click(function () {
        pageindex = lastpageindex;
        loaddata();
      })
      $('a:last').click(function () {
        pageindex = $('#txtPageindex').val();
        loaddata();
      })
    })
  
  /script>
/head>
body>
div id="mydiv">
/div>
div>a href="#">第一頁(yè)/a>a href="#">上一頁(yè)/a>a href="#">下一頁(yè)/a>a href="#">最后一頁(yè)/a>input
    id="txtPageindex" type="text" />a href="#">Go/a>/div>
/body>
/html>

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Services;
using System.Data;


namespace 分頁(yè)
{
  /// summary>
  /// WebService1 的摘要說(shuō)明
  /// /summary>
  [WebService(Namespace = "http://tempuri.org/")]
  [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
  [System.ComponentModel.ToolboxItem(false)]
  // 若要允許使用 ASP.NET AJAX 從腳本中調(diào)用此 Web 服務(wù)，請(qǐng)取消對(duì)下行的注釋。
  [System.Web.Script.Services.ScriptService]
  public class WebService1 : System.Web.Services.WebService
  {


    [WebMethod]
    public string HelloWorld()
    {
      return "Hello World";
    }
    [WebMethod]
    public ListModel.T_News1> GetListAjax(int pagesize,int pageindex)
    {
      BLL.T_News1 bnews = new BLL.T_News1();
      DataTable dt = bnews.GetListDataTable(pagesize,pageindex);
      ListModel.T_News1> list = new ListModel.T_News1>();
      int Id;
      string newstitle = "";
      string newscontent = "";
      DateTime createtime;
      for (int i = 0; i  dt.Rows.Count; i++)
      {
        Id = Convert.ToInt32(dt.Rows[i]["Id"]);
        newstitle = dt.Rows[i]["NewsTitle"].ToString();
        newscontent = dt.Rows[i]["NewsContent"].ToString();
        createtime = Convert.ToDateTime(dt.Rows[i]["CreateTime"]);
        Model.T_News1 news = new Model.T_News1()
        {


          Id = Id,
          NewsTitle = newstitle,
          NewsContent = newscontent,
          CreateTime = createtime
        };
        list.Add(news);
      }
      return list;
        
    }
    [WebMethod]
    public int GetLastPageindex(int pagesize)
    {
      BLL.T_News1 bnews = new BLL.T_News1();
      int totalcount = bnews.GetRecordCount("");
      if (totalcount % pagesize == 0)
      {
        return totalcount / pagesize;
      }
      else
      {
        return totalcount / pagesize + 1;
      }
    }


  }
}