• Jquery+JSon实现的Asp.net无刷新分页控件


    控件类代码:

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

    [assembly: WebResource(
    "PageBarJS.js""application/x-javascript")]
    namespace Hawkon.Control {
        [DefaultProperty(
    "Text")]
        [ToolboxData(
    "<{0}:PageBar runat=server></{0}:PageBar>")]
        
    public class PageBar : WebControl {
            [Bindable(
    true)]
            [Category(
    "Data")]
            [DefaultValue(
    "1")]
            [Localizable(
    true)]
            
    public int PageIndex {
                
    get {
                    
    return pageIndex;
                }

                
    set {
                    pageIndex 
    = value;
                }
            }
            
    private int pageIndex;

            [Bindable(
    true)]
            [Category(
    "Data")]
            [DefaultValue(
    "1")]
            [Localizable(
    true)]
            
    public int PageCount {
                
    get {
                    
    return pageCount;
                }

                
    set {
                    pageCount 
    = value;
                }
            }
            
    private int pageCount;

            [Bindable(
    true)]
            [Category(
    "Data")]
            [DefaultValue(
    "5")]
            [Localizable(
    true)]
            
    public int DisplayCount {
                
    get {
                    
    return displayCount;
                }

                
    set {
                    displayCount 
    = value;
                }
            }
            
    private int displayCount;

            
    protected override void RenderContents(HtmlTextWriter output) {

                
    string html = "";
                html 
    += CreateA(1"<<");
                
    int b = 0, e = 0;
                
    if (pageIndex <= displayCount) {
                    b 
    = 1;
                    e 
    = displayCount * 2 + 1;
                }
                
    else if (pageIndex > pageCount - displayCount) {

                    b 
    = pageCount - displayCount * 2;
                    e 
    = pageCount;
                }
                
    else {
                    b 
    = pageIndex - displayCount;
                    e 
    = pageIndex + displayCount;
                }
                
    if (b <= 1) {
                    html 
    += CreateA(1"");
                }
                
    else
                    html 
    += CreateA(b - 1"");
                
    for (int i = b; i <= e; i++) {

                    html 
    += CreateA(i, i.ToString());

                }
                html 
    += CreateA(e + 1"");
                html 
    += CreateA(pageCount, ">>");
                
    // html += string.Format("<script src='{0}' type='text/javascript'></script>",
                
    //   this.Page.ClientScript.GetWebResourceUrl(typeof(PageBar), "JScript1.js"));
                output.Write(html);
            }
            
    private string CreateA(int pageIndex, string text) {
                
    if (pageIndex == this.pageIndex) {
                    
    return string.Format("<a class=\"pageA\" title='页'  id =\"{0}\">{1}</a>&nbsp;", pageIndex, text);
                }
                
    return string.Format("<a class=\"pageA\" title='页' href=\"#\" id=\"{0}\">{1}</a>&nbsp;", pageIndex, text);

            }
            
    protected override void OnPreRender(EventArgs e) {
                
    base.OnPreRender(e);
                
    string resourceName = "PageBarJS.js";
                
    string url = this.Page.ClientScript.GetWebResourceUrl(this.GetType(), "PageBarJS.js");
                
    string script = "\r\n<script src=\"" + HttpUtility.HtmlAttributeEncode(url) + "\" type=\"text/javascript\"></script>";
                
    this.Page.ClientScript.RegisterClientScriptBlock(this.GetType(), resourceName, script, false);
                script 
    = @"<script type=""text/javascript"">$(document).ready(function() {InitPageBar(5, ""BookListByPage"", ""Books "",  50,""pageA"");});</script>";            this.Page.ClientScript.RegisterClientScriptBlock(this.GetType(), "ready", script);            
            }
            
    protected override void Render(HtmlTextWriter writer) {
                
    base.Render(writer);
            }

        }
    }

     JS资源文件代码:


    var displayCount;
    var getDataUrl;
    var bookTableId;
    var currentIndex;
    var pageCount;
    var linkClass;
    var fields;
    function InitPageBar(dc, gdu, btId,pc,lc) {
        displayCount 
    = dc;
        getDataUrl 
    = gdu;
        bookTableId 
    = btId;
        currentIndex 
    = 1;
        pageCount 
    = pc;
        linkClass 
    = "."+lc;
        $(linkClass).click(GetPage);
    }
    function GetPageById(id) {

        $(
    "#CI").val(id);
        
    var surl = getDataUrl+"?pageIndex=" + id;
        $.ajax({
            url: surl,
            type: 
    "GET",
            dataType: 
    "json",
            timeout: 
    1000,
            success: showResult
        }
                );
    }
    function GetPage() {
        GetPageById($(
    this).get(0).id);
    }
    function showResult(result) {
        
    for (i = 1; i <= result.Data.length; i++) {
            
    var id = "#" + bookTableId + " tr:nth-child(" + i + ")";
            obj 
    = result.Data[i - 1];
            
    for (var key in obj) {
                ctl 
    = $(id).find("." + key);
                
    if (ctl.length > 0) {
                ctl.get(
    0).innerHTML = obj[key];
                }
            }
        }
        $(linkClass).each(
    function(index) {
            
    var i, b, e;

            
    if (result.CurrentPageIndex <= displayCount) {
                b 
    = 1;
                e 
    = (displayCount + 1* 2;
                i 
    = index - 2 + 1;
            }
            
    else if (result.CurrentPageIndex > pageCount - displayCount) {

            b 
    = pageCount - displayCount * 2;
            e 
    = pageCount;
            i 
    = pageCount - displayCount * 2 + index - 2;
            }
            
    else {
                i 
    = result.CurrentPageIndex - displayCount + index - 2;
                b 
    = result.CurrentPageIndex - displayCount - 1;
                e 
    = result.CurrentPageIndex + displayCount + 1;
            }
            
    if ($(this).get(0).id == $(this).text()) {
                $(
    this).text(i);
            }
            
    else if (index == 1) {
                
    if (b <= 1) {

                    $(
    this).get(0).id = 1;

                }
                
    else {
                    $(
    this).get(0).id = b - 1;
                }
            }
            
    else if (index == displayCount * 2 + 3) {
                $(
    this).get(0).id = e;
            }

            $(
    this).attr("href""#");

            
    if ((i >= b) && (i <= e)) {
                $(
    this).get(0).id = i;
            }

            
    if ($(this).text == result.CurrentPageIndex) {
                $(
    this).removeAttr("href");
            }
        });
        currentIndex 
    = result.CurrentPageIndex;

    }
        <form runat="server" id="form1">
        
    <div>
        
    <asp:Repeater ID="rptBooks" runat="server">
            
    <HeaderTemplate>
                
    <table id="Books" width="90%" cellspacing="0" style="font-size:12px;">
                    
    <tr>
                        
    <th>
                            书名
                        
    </th>
                        
    <th>
                            作者
                        
    </th>
                        
    <th>
                            类别
                        
    </th>
                        
    <th width="30px">
                            
                        
    </th>
                        
    <th width="30px">
                            
                        
    </th>
                    
    </tr>
                    
    <tbody id="Data">
                        
    <tr>
            
    </HeaderTemplate>
            
    <ItemTemplate>
                
    <td class="Title">
                    
    <%Eval("Title"%>
                
    </td>
                
    <td class="Author">
                    
    <%Eval("Author"%>
                
    </td>
                
    <td class="CategoryName">
                    
    <%Eval("Categories.Name")%>
                
    </td>
                
    <td>
                    
    <href="#" id='<%# Eval("Id") %>' class="delBook">删除</a>
                
    </td>
                
    <td>
                    
    <href='BookDetail/<%# Eval("Id") %>' class="details">详细</a>
                
    </td>
            
    </ItemTemplate>
            
            
    <SeparatorTemplate>
                
    </tr><tr>
            
    </SeparatorTemplate>
            
    <FooterTemplate>
                
    </tr></tbody>
                
    <tr>
                    
    <td colspan="3">
                
    <cc1:PageBar ID="PageBar1" runat="server" PageCount="100" DisplayCount="5" PageIndex="1"  />
                        
    <input type="text" id = "CI" />
                    
    </td>
                    
    </td>
                
    </tr>
                
    </table>
            
    </FooterTemplate>
        
    </asp:Repeater>
        
    </div>
        
    </form>

     Ajax请求地址返回的JSON数据:

    {"Data":[{"Title":"C#.NET程序设计——国外计算机科学经典教材","CategoryName":".NET","Author":"布拉德利(Bradley,J.C.),米尔斯波(Millspaugh,A.C.)  著, 天宏工作室  译","Id":5392},{"Title":"C#2.0〔宝典)(附盘)","CategoryName":"C C++ VC VC++","Author":"张立  编著","Id":5027},{"Title":"C#2.0完全自学手册(附CD)","CategoryName":"C C++ VC VC++","Author":"张立 等编著","Id":5081},{"Title":"C#2005数据库编程经典教程","CategoryName":"C C++ VC VC++","Author":"(美)沃顿(Karli watton)  著,陈秋萍  译","Id":4983},{"Title":"C#程序设计教程——计算机基础课程系列教材","CategoryName":"C C++ VC VC++","Author":"郑阿奇,梁敬东  主编","Id":5127},{"Title":"C#程序员参考手册","CategoryName":"C C++ VC VC++","Author":"Grant Palmer 著,康博 译","Id":5132},{"Title":"C#和.NET核心技术——开发人员专业技术丛书","CategoryName":"C C++ VC VC++","Author":"(美)佩里(Perry,S.C.)  著,肖斌  等译","Id":5104},{"Title":"C#基础与实例教程(附CD-ROM光盘一张)","CategoryName":"C C++ VC VC++","Author":"郝春强  编著","Id":5071},{"Title":"C#软件项目开发全程剖析","CategoryName":"C C++ VC VC++","Author":"(德)侯姆,(德)克鲁格,(德)斯普达 著,薛兴涛,袁勤勇 译","Id":5034},{"Title":"C#设计模式——开发大师系列","CategoryName":"C C++ VC VC++","Author":"(美)麦斯科 著,颜炯 译","Id":4954}],"CurrentPageIndex":15,"PageCount":1074}
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  • 原文地址:https://www.cnblogs.com/hawkon/p/1595390.html
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