Jquery+JSon 无刷新分页实现代码【jquery】

web前端|js教程 Jquery+JSon 无刷新分页实现代码【jquery】

Jquery,JSon,无刷新分页

web前端-js教程

控件类代码：

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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("")] 
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("", 
// 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("{1} ", pageIndex, text); 
} 
return string.Format("{1} ", 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"; 
this.Page.ClientScript.RegisterClientScriptBlock(this.GetType(), resourceName, script, false); 
script = @"$(document).ready(function() {InitPageBar(5, ""BookListByPage"", ""Books "", 50,""pageA"");});"; this.Page.ClientScript.RegisterClientScriptBlock(this.GetType(), "ready", script); 
} 
protected override void Render(HtmlTextWriter writer) { 
base.Render(writer); 
} 
} 
}

JS资源文件代码：

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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; 
}

HTML页面代码：

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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数据库编程经典教学","CategoryName":"C C++ VC VC++","Author":"（美）沃顿（Karli watton） 著，陈秋萍 译","Id":4983},{"Title":"C#程序设计教学——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#基础与实例教学（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}