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标题 asp.net中利用Jquery+Ajax+Json实现无刷新分页的实例代码
内容
    本篇文章主要是对asp.net中利用Jquery+Ajax+Json实现无刷新分页的实例代码进行了介绍，需要的朋友可以过来参考下，需要对大家有所帮助
    代码如下:
    <%@ 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分页</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; //页面索引初始值
    var pageSize = 10; //每页显示条数初始化，修改显示条数，修改这里即可
    $(function () {
    InitTable(0); //Load事件，初始化表格数据，页面索引为0（第一页）
    //分页，PageCount是总条目数，这是必选参数，其它参数都是可选
    $("#Pagination").pagination(<%=pageCount %>, {
    callback: PageCallback,
    prev_text: '上一页', //上一页按钮里text
    next_text: '下一页', //下一页按钮里text
    items_per_page: pageSize, //显示条数
    num_display_entries: 6, //连续分页主体部分分页条目数
    current_page: pageIndex, //当前页索引
    num_edge_entries: 2 //两侧首尾分页条目数
    });
    //翻页调用
    function PageCallback(index, jq) {
    InitTable(index);
    }
    //请求数据
    function InitTable(pageIndex) {
    $.ajax({
    type: "POST",
    dataType: "json",
    url: 'SupplyAJAX.aspx', //提交到一般处理程序请求数据
    data: "type=show&random=" + Math.random() + "&pageIndex=" + (pageIndex + 1) + "&pageSize=" + pageSize, //提交两个参数：pageIndex(页面索引)，pageSize(显示条数)
    error: function () { alert('error data'); }, //错误执行方法
    success: function (data) {
    $("#Result tr:gt(0)").remove(); //移除Id为Result的表格里的行，从第二行开始（这里根据页面布局不同页变）
    var json = data; //数组
    var html = "";
    $.each(json.data, function (index, item) {
    //循环获取数据
    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); //将返回的数据追加到表格
    }
    });
    }
    });
    </script>
    </head>
    <body>
    <form id="form1" runat="server">
    <table id="Result" cellspacing="0" cellpadding="0">
    <tr>
    <th>
    编号
    </th>
    <th>
    姓名
    </th>
    <th>
    性别
    </th>
    </tr>
    </table>
    <div id="Pagination">
    </div>
    </form>
    </body>
    </html>
    代码如下:
    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; //总条目数
    protected void Page_Load(object sender, EventArgs e)
    {
    if (!IsPostBack)
    {
    string url = "/SupplyAJAX.aspx";
    string strResult = GetRequestJsonString(url, "type=getcount");
    pageCount = strResult.ToString();
    }
    }
    #region 后台获取ashx返回的数据
    /// <summary>
    /// 后台获取ashx返回的数据
    /// </summary>
    /// <param name="relativePath">地址</param>
    /// <param name="data">参数</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
    }
    代码如下:
    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 分页配置
    //具体的页面数
    int pageIndex;
    int.TryParse(Request["pageIndex"], out pageIndex);
    //页面显示条数
    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);//这个很关键，否则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 模拟数据
    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, "张三" + i.ToString().PadLeft(4, '0'));
    }
    RecordCount = dt.Rows.Count;
    return dt;
    }
    #endregion
    /// <summary>
    /// 对DataTable进行分页,起始页为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>
    /// 获取总页数
    /// </summary>
    /// <param name="sumCount">结果集数量</param>
    /// <param name="pageSize">页面数量</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;
    }
    }
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更新时间：2025/5/17 20:36:59