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

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    本篇文章主要是對(duì)asp.net中利用Jquery+Ajax+Json實(shí)現(xiàn)無刷新分頁的實(shí)例代碼進(jìn)行了介紹,需要的朋友可以過來參考下,需要對(duì)大家有所幫助
    代碼如下:
    <%@ 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(qǐng)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(qǐng)求數(shù)據(jù)
    data: "type=show&random=" + Math.random() + "&pageIndex=" + (pageIndex + 1) + "&pageSize=" + pageSize, //提交兩個(gè)參數(shù):pageIndex(頁面索引),pageSize(顯示條數(shù))
    error: function () { alert('error data'); }, //錯(cuò)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(hào)
    </th>
    <th>
    姓名
    </th>
    <th>
    性別
    </th>
    </tr>
    </table>
    <div id="Pagination">
    </div>
    </form>
    </body>
    </html>
    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(tái)獲取ashx返回的數(shù)據(jù)
    /// <summary>
    /// 后臺(tái)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
    }
    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(gè)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(duì)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;
    }
    public struct Student
    {
    public int Id;
    public string Name;
    public string Sex;
    }
    }