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JQuery Ajax dynamically generates Table tables

亚连Original: 2018-05-24 17:31:313717browse

The implementation process is as follows: the front desk calls the general handler (Handler) through jquery's ajax to obtain the information that the table needs to display, and then converts it into json format and returns it to the front desk. After the front desk obtains the data, it loops to build the rows of the table, and finally to append rows to the table. Friends who are interested, let’s take a look

Preface:

The approximate function of this example is to call the general handler (Handler) through JQuery’s Ajax at the front desk to obtain the table that needs to be displayed. The information is then converted into json format and returned to the front desk. After the front desk obtains the data, it loops to construct the rows of the table. It is best to append the rows to the table.

Objectives:

a Be familiar with the use of simple JQuery Ajax

b Understand how to construct basic Json format data (Json can also be constructed through Third party dll)

c Get familiar with the basic usage of handler

1 Simple rendering

2 Front Desk Code

<%@ 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="../JQueryUi/jquery-ui-1.8.5.custom.css" rel="stylesheet" type="text/css" />
  <script src="../JQueryUi/jquery-1.4.2.min.js" type="text/javascript"></script>
  <script src="../JQueryUi/jquery-ui-1.8.5.custom.min.js" type="text/javascript"></script>
  <style type="text/css">
    #pTb
    {
      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 class=&#39;" + trColor + "&#39;><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 id="form1" runat="server">
  <p id="pTb">
    <table id="myTb" style=" width:100%">
    </table>
  </p>
  </form>
</body>
</html>

3 Handler Code

<%@ WebHandler Language="C#" Class="TestHandler" %>
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;
    }
  }
}

The above is what I compiled for everyone. I hope it will be helpful to everyone in the future.

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