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asp.net中利用Jquery+Ajax+Json實現(xiàn)無刷新分頁的實例代碼

更新時間：2014年02月08日 09:34:21 作者：

本篇文章主要是對asp.net中利用Jquery+Ajax+Json實現(xiàn)無刷新分頁的實例代碼進(jìn)行了介紹，需要的朋友可以過來參考下，需要對大家有所幫助

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="AjaxJson.aspx.cs" Inherits="AjaxJson" %>
<!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 runat="server">
    <title>Jquery+Ajax+Json分頁</title>
    <meta http-equiv="content-type" content="text/html; charset=gb2312">
    <link href="Styles/tablecloth.css" rel="stylesheet" type="text/css" />
    <link href="Styles/pagination.css" rel="stylesheet" type="text/css" />

    <script type="text/javascript" src="Scripts/jquery-1.4.4.min.js"></script>
    <script type="text/javascript" src="Scripts/jquery.pagination.js"></script>
    <script type="text/javascript">
    var pageIndex = 0;     //頁面索引初始值
    var pageSize = 10;     //每頁顯示條數(shù)初始化，修改顯示條數(shù)，修改這里即可
    $(function () {
        InitTable(0);    //Load事件，初始化表格數(shù)據(jù)，頁面索引為0（第一頁）
        //分頁，PageCount是總條目數(shù)，這是必選參數(shù)，其它參數(shù)都是可選
        $("#Pagination").pagination(<%=pageCount %>, {
            callback: PageCallback,
            prev_text: '上一頁',       //上一頁按鈕里text
            next_text: '下一頁',       //下一頁按鈕里text
            items_per_page: pageSize, //顯示條數(shù)
            num_display_entries: 6,    //連續(xù)分頁主體部分分頁條目數(shù)
            current_page: pageIndex,   //當(dāng)前頁索引
            num_edge_entries: 2        //兩側(cè)首尾分頁條目數(shù)
        });

        //翻頁調(diào)用
        function PageCallback(index, jq) {
            InitTable(index);
        }

        //請求數(shù)據(jù)
        function InitTable(pageIndex) {
            $.ajax({
                type: "POST",
                dataType: "json",
                url: 'SupplyAJAX.aspx',      //提交到一般處理程序請求數(shù)據(jù)
                data: "type=show&random=" + Math.random() + "&pageIndex=" + (pageIndex + 1) + "&pageSize=" + pageSize, //提交兩個參數(shù)：pageIndex(頁面索引)，pageSize(顯示條數(shù))
                error: function () { alert('error data'); }, //錯誤執(zhí)行方法
                success: function (data) {
                    $("#Result tr:gt(0)").remove();        //移除Id為Result的表格里的行，從第二行開始（這里根據(jù)頁面布局不同頁變）
                    var json = data; //數(shù)組
                    var html = "";
                    $.each(json.data, function (index, item) {
                        //循環(huán)獲取數(shù)據(jù)
                        var id = item.Id;
                        var name = item.Name;
                        var sex = item.Sex;
                        html += "<tr><td>" + id + "</td><td>" + name + "</td><td>" + sex + "</td></tr>";
                    });
                    $("#Result").append(html);             //將返回的數(shù)據(jù)追加到表格
                }
            });
        }
    });
    </script>

</head>
<body>
    <form id="form1" runat="server">
    <table id="Result" cellspacing="0" cellpadding="0">
        <tr>
            <th>
                編號
            </th>
            <th>
                姓名
            </th>
            <th>
                性別
            </th>
        </tr>
    </table>
    <div id="Pagination">
    </div>
    </form>
</body>
</html>

復(fù)制代碼代碼如下:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Text;
using System.Net;
using System.IO;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class AjaxJson : System.Web.UI.Page
{
public string pageCount = string.Empty; //總條目數(shù)

    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            string url = "/SupplyAJAX.aspx";
            string strResult = GetRequestJsonString(url, "type=getcount");
            pageCount = strResult.ToString();
        }
    }

    #region 后臺獲取ashx返回的數(shù)據(jù)
    /// <summary>
    /// 后臺獲取ashx返回的數(shù)據(jù)
    /// </summary>
    /// <param name="relativePath">地址</param>
    /// <param name="data">參數(shù)</param>
    /// <returns></returns>
    public static string GetRequestJsonString(string relativePath, string data)
    {
        string requestUrl = GetRequestUrl(relativePath, data);

        try
        {
            WebRequest request = WebRequest.Create(requestUrl);
            request.Method = "GET";

StreamReader jsonStream = new StreamReader(request.GetResponse().GetResponseStream());
string jsonObject = jsonStream.ReadToEnd();

            return jsonObject;
        }
        catch
        {
            return string.Empty;
        }
    }

    public static string GetRequestUrl(string relativePath, string data)
    {
        string absolutePath = HttpContext.Current.Request.Url.AbsoluteUri;
        string hostNameAndPort = HttpContext.Current.Request.Url.Authority;
        string applicationDir = HttpContext.Current.Request.ApplicationPath;
        StringBuilder sbRequestUrl = new StringBuilder();
        sbRequestUrl.Append(absolutePath.Substring(0, absolutePath.IndexOf(hostNameAndPort)));
        sbRequestUrl.Append(hostNameAndPort);
        sbRequestUrl.Append(applicationDir);
        sbRequestUrl.Append(relativePath);
        if (!string.IsNullOrEmpty(data))
        {
            sbRequestUrl.Append("?");
            sbRequestUrl.Append(data);
        }
        return sbRequestUrl.ToString();
    }
    #endregion
}

復(fù)制代碼代碼如下:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Data;
using System.Web.UI;
using System.Web.UI.WebControls;
//新增
using System.Web.Script.Serialization;
using System.Text;

public partial class SupplyAJAX : System.Web.UI.Page
{
    protected static List<Student> StudentList = new List<Student>();
    protected static int RecordCount = 0;
    protected static DataTable dt = CreateDT();
    protected void Page_Load(object sender, EventArgs e)
    {
        switch (Request["type"])
        {
            case "show":
                #region 分頁配置
                //具體的頁面數(shù)
                int pageIndex;
                int.TryParse(Request["pageIndex"], out pageIndex);
                //頁面顯示條數(shù)
                int PageSize = Convert.ToInt32(Request["pageSize"]);
                if (pageIndex == 0)
                {
                    pageIndex = 1;
                }
                #endregion
                DataTable PagedDT = GetPagedTable(dt, pageIndex, PageSize);
                List<Student> list = new List<Student>();
                foreach (DataRow dr in PagedDT.Rows)
                {
                    Student c = new Student();
                    c.Id = (Int32)dr["Id"];
                    c.Name = dr["Name"].ToString();
                    c.Sex = dr["Sex"].ToString();
                    list.Add(c);
                }
                string json = new JavaScriptSerializer().Serialize(list);//這個很關(guān)鍵，否則error
                StringBuilder Builder = new StringBuilder();
                Builder.Append("{");
                Builder.Append("\"recordcount\":" + RecordCount + ",");
                Builder.Append("\"data\":");
                Builder.Append(json);
                Builder.Append("}");
                Response.ContentType = "application/json";
                Response.Write(Builder.ToString());
                break;
            case "getcount":
                Response.Write(dt.Rows.Count);
                break;
            case "add":
                break;
            case "update":
                break;
            case "delete":
                break;
        }
        Response.End();
    }

    #region 模擬數(shù)據(jù)
    private static DataTable CreateDT()
    {
        DataTable dt = new DataTable();
        dt.Columns.Add(new DataColumn("Id", typeof(int)) { DefaultValue = 0 });
        dt.Columns.Add(new DataColumn("Name", typeof(string)) { DefaultValue = "1" });
        dt.Columns.Add(new DataColumn("Sex", typeof(string)) { DefaultValue = "男" });
        for (int i = 1; i <= 1000; i++)
        {
            dt.Rows.Add(i, "張三" + i.ToString().PadLeft(4, '0'));
        }
        RecordCount = dt.Rows.Count;
        return dt;
    }
    #endregion

    /// <summary>
    /// 對DataTable進(jìn)行分頁,起始頁為1
    /// </summary>
    /// <param name="dt"></param>
    /// <param name="PageIndex"></param>
    /// <param name="PageSize"></param>
    /// <returns></returns>
    public static DataTable GetPagedTable(DataTable dt, int PageIndex, int PageSize)
    {
        if (PageIndex == 0)
            return dt;
        DataTable newdt = dt.Copy();
        newdt.Clear();
        int rowbegin = (PageIndex - 1) * PageSize;
        int rowend = PageIndex * PageSize;
        if (rowbegin >= dt.Rows.Count)
            return newdt;
        if (rowend > dt.Rows.Count)
            rowend = dt.Rows.Count;
        for (int i = rowbegin; i <= rowend - 1; i++)
        {
            DataRow newdr = newdt.NewRow();
            DataRow dr = dt.Rows[i];
            foreach (DataColumn column in dt.Columns)
            {
                newdr[column.ColumnName] = dr[column.ColumnName];
            }
            newdt.Rows.Add(newdr);
        }
        return newdt;
    }

    /// <summary>
    /// 獲取總頁數(shù)
    /// </summary>
    /// <param name="sumCount">結(jié)果集數(shù)量</param>
    /// <param name="pageSize">頁面數(shù)量</param>
    /// <returns></returns>
    public static int getPageCount(int sumCount, int pageSize)
    {
        int page = sumCount / pageSize;
        if (sumCount % pageSize > 0)
        {
            page = page + 1;
        }
        return page;
    }