本示例大概功能是前台通过JQuery的Ajax调用一般处理程序(Handler)，获取表格需要显示的信息，然后转换成json格式返回给前台，前台获取到数据后循环构建表格的行，最好把行附加到表里。
目标：
a 熟悉简单JQuery Ajax的使用
b 了解如何构造基本的Json格式的数据（构建Json也可以通过第三方的dll）
c 熟悉下handler的基本用法
1 简单效果图
2 前台代码
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="DialogAjax.aspx.cs" Inherits="JQueryTest_DialogAjax" %> <!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></title> <link href="https://www.jb51.net/JQueryUi/jquery-ui-1.8.5.custom.css" type="text/css" /> <script src="https://www.jb51.net/JQueryUi/jquery-1.4.2.min.js" type="text/javascript"></script> <script src="https://www.jb51.net/JQueryUi/jquery-ui-1.8.5.custom.min.js" type="text/javascript"></script> <style type="text/css"> #divTb { width:800px; border:1px solid #aaa; margin:0 auto; } .even{background:#CCCCCC;} .odd{background:#FFFFFF;} </style> <script type="text/javascript"> //获取发布模块类型 function getModuleInfo() { $.ajax({ type: "GET", dataType: "json", url: "../Handler/TestHandler.ashx?Method=GetModuleInfo", //data: { id: id, name: name }, success: function(json) { var typeData = json.Module; $.each(typeData, function(i, n) { var tbBody = "" var trColor; if (i % 2 == 0) { trColor = "even"; } else { trColor = "odd"; } tbBody += "<tr><td>" + n.ModuleNum + "</td>" + "<td>" + n.ModuleName + "</td>" + "<td>" + n.ModuleDes + "</td></tr>"; $("#myTb").append(tbBody); }); }, error: function(json) { alert("加载失败"); } }); } $(function() { getModuleInfo(); }); </script> </head> <body> <form runat="server"> <div> <table> </table> </div> </form> </body> </html>
3 Handler代码
<%@ WebHandler Language="C#" %> using System; using System.Web; using System.Collections.Generic; using System.Text; using DataDAL; using DataEnity; public class TestHandler : IHttpHandler { HttpRequest Request; HttpResponse Response; public void ProcessRequest (HttpContext context) { //不让浏览器缓存 context.Response.Buffer = true; context.Response.ExpiresAbsolute = DateTime.Now.AddDays(-1); context.Response.AddHeader("pragma", "no-cache"); context.Response.AddHeader("cache-control", ""); context.Response.CacheControl = "no-cache"; context.Response.ContentType = "text/plain"; Request = context.Request; Response = context.Response; string method = Request["Method"].ToString(); System.Reflection.MethodInfo methodInfo = this.GetType().GetMethod(method); methodInfo.Invoke(this, null); } public void GetModuleInfo() { StringBuilder sb = new StringBuilder(); string jsonData = string.Empty; List<Module> lsModule = ModuleDAL.GetModuleList(); sb.Append("{\"Module\":["); for (int i = 0; i < lsModule.Count; i++) { jsonData = "{\"ModuleNum\":" + "\"" + lsModule[i].ModuleNum + "\"" + ",\"ModuleName\":" + "\"" + lsModule[i].ModuleName + "\"" + ",\"ModuleDes\":" + "\"" + lsModule[i].ModuleDes + "\"" + "},"; sb.Append(jsonData); } if (lsModule.Count > 0) sb = sb.Remove(sb.Length - 1, 1); sb.Append("]}"); Response.Write(sb); } public bool IsReusable { get { return false; } } }
以上代码超简单吧，JQuery Ajax动态生成Table表格的内容就全部完成了，希望对大家有所帮助。
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