<td class="addlist">  

                   <div class="block">  

                       <div class="h">  

                           <span class="icon-sprite icon-list"></span>  

                           <h3>  

                               添加信息列表</h3>  

                       </div>  

                       <div class="tl corner">  

                       </div>  

                       <div class="tr corner">  

                       </div>  

                       <div class="bl corner">  

                       </div>  

                       <div class="br corner">  

                       </div>  

                       <div class="cnt-wp">  

                           <div class="cnt" style="width: 450px; height: 400px; overflow: scroll;">  

                               <table class="data-form" id="tabAddList" border="0" cellspacing="0" width="450px"  

                                   align="center" cellpadding="0">  

                                      <tbody>  

                            

                           <tr>  

                               <th scope="row">  

                                   教师名：  

                               </th>  

                               <td>  

                                   <asp:TextBox CssClass="input-normal" ID="txtAddTeacherName" runat="server"   

                                       Enabled="False"></asp:TextBox>  

                                   <%--隐藏控件，保存教师id--%>  

                                   <asp:HiddenField ID="hidFieldSaveTeacherID" runat="server" />  

                               </td>  

                           </tr>  

                            <tr>  

                               <th scope="row">  

                                   课程名：  

                               </th>  

                               <td>  

                                   <asp:TextBox CssClass="input-normal" ID="txtAddCourseName" runat="server"   

                                       Enabled="False"></asp:TextBox>  

                                   <%--隐藏控件，保存课程id--%>  

                                   <asp:HiddenField ID="hidFieldSaveCourseID" runat="server" />  

                                   <%--隐藏控件，保存教师、课程关系indexing--%>  

                                   <asp:HiddenField ID="hidFieldSaveIndexing" runat="server" />  

                               </td>  

                           </tr>  

                           <tr>  

                               <th scope="row">  

                                   选择上课班：  

                               </th>  

                               <td>  

                                   <asp:DropDownList ID="ddlTeachClass" CssClass="input-normal" runat="server">  

                                   </asp:DropDownList>  

                               </td>  

                                <td>  

                                  <%-- <asp:Button ID="btnAddTeachClass" runat="server" Text="添加一个上课班" OnClick="btnAddTeachClass_Click" />--%>  

                                      

                                     <input id="btnAddTeachClass" type="button" class="btn-lit" value="确认添加" onclick="AddTeachClass()" />  

                               </td>  

                           </tr>  

                           <tr>  

                               <th scope="row">  

                                   已选授课人数  

                               </th>  

                               <td>  

                                   <asp:TextBox CssClass="input-normal" ID="txtStuNum" runat="server"   

                                       Enabled="False"></asp:TextBox>  

                               </td>  

                           </tr>  

                           <tr>  

                               <th scope="row">  

                                   学生姓名列表  

                               </th>  

                               <td>  

                                   <asp:ListBox ID="lsboxStudent" runat="server" Height="150px" Width="250px"></asp:ListBox>  

                               </td>  

                           </tr>  

                            

                           <tr>  

                               <th scope="row">  

                                    <br />  

                               </th>  

                               <td>  

                                   <br />  

                                    <%--<asp:Button ID="btnAddTeachCourse" class="btn-lit" runat="server" Text="确认添加"   

                                       onclick="btnAddTeachCourse_Click" />--%>  

                                   <input id="btnAddTeachCourse" type="button" class="btn-lit" value="确认添加" onclick="AddTeachCourse()" />  

                               </td>  

                           </tr>  

                       </tbody>  

                               </table>  

                                

                           </div>  

                       </div>  

                   </div>  

               </td>  

 

 

选择完学年学期、教师、课程、学生后，点击"确认添加"按钮，执行"添加授课信息"事件!

         

2.通过JS获取前台授课数据，并向后台一般处理程序传递

 

[javascript] view plaincopyprint?  

1. //*******************************************授课点击事件******************************************//  
2. //添加授课信息  
3. function AddTeachCourse() {  
4.      
5.     //取得教师ID  
6.     var strTeacherID = $("#hidFieldSaveTeacherID").val();  
7.     //alert("教师ID="+txtTeacherID);  
8.   
9.   
10.     //取得课程ID  
11.     var strCourseID = $("#hidFieldSaveCourseID").val();  
12.     //alert("课程ID="+txtCourseID);  
13.     //取得上课班ID  
14.     var strTeachClassID = document.getElementById("ddlTeachClass");  
15.     var TeachClassID = strTeachClassID.options[strTeachClassID.selectedIndex].value; //得到ID  
16.     //取得课程分配的ID（Indexing）  
17.     var Indexing = $("#hidFieldSaveIndexing").val();  
18.     //取得学生数量  
19.     var stuNum = $("#txtStuNum").val();  
20.   
21.   
22.     //取得listbox框ID  
23.     var listStudent = document.getElementById("lsboxStudent");  
24.     //取得listbox框中元素长度  
25.     var lstStuLength = listStudent.options.length;  
26.     //    var objJsons="";  
27.     //    var StuArrayObj = new Array(); //创建一个数组,存储学生ID  
28.     // StuArrayObj[i] = StudentID; //向数组中添加学生ID  
29.   
30.     //*******************以下是：转换json对象的过程*************************//  
31.     var StuArrayObjs = [];  //定义一个空串  
32.     for (var i = 0; i < lstStuLength; i++) {  
33.   
34.         var StudentID = listStudent.options[i].value; //取得学生ID  
35.   
36.         var StuArrayObj = {};       //定义一个空对象，存入数据依次写入空串  
37.         StuArrayObj["TeacherID"] = strTeacherID;             //教师ID  
38.         StuArrayObj["CourseID"] = strCourseID;     //课程ID  
39.         StuArrayObj["TeachClassID"] = TeachClassID;      //上课班ID  
40.         StuArrayObj["Indexing"] = Indexing;              //课程分配ID  
41.         StuArrayObj["StuNum"] = stuNum;       //学生数量  
42.         StuArrayObj["StudentID"] = StudentID;         //学生ID  
43.   
44.         StuArrayObjs.push(StuArrayObj);  
45.   
46.     }  
47.     var TeachCourseJsonString = JSON.stringify(StuArrayObjs);  // JSON.stringify() 转换为json串  
48.     //    var TeachCourseJson = eval("(" + TeachCourseJsonString + ")");  //转换为json对象  
49.     //    alert(TeachCourseJson[1].TeacherID);  
50.     //下面$.getJSON 可以传递成功，只是这样传递不能传递过长字符串  
51.     ////    $.getJSON("../handler/AddTeachCourse.ashx", { TeachCourseJson: TeachCourseJsonString }, function (data) {  
52.     ////        alert(data);  
53.     ////    });  
54.     //与AJAX交互，向一般处理程序传递json字符串数组，并返回结果  
55.     $.post("../handler/AddTeachCourse.ashx", { TeachCourseJson: TeachCourseJsonString }, function (data) {  
56.         alert(data);  
57.     });  
58.   
59.     }  

以上有几个需要注意的地方：

 

   2.1.转换JSON串使用

[javascript] view plaincopyprint?  

1. JSON.stringify()  

 

   2.2.JS向一般处理程序传递JSON使用

 

[javascript] view plaincopyprint?  

1. //与AJAX交互，向一般处理程序传递json字符串数组，并返回结果  
2.    $.post("要使用的一般处理程序路径", { TeachCourseJson: TeachCourseJsonString }, function (data) {  
3.        alert(data);  
4.    });  

 

 

3.一般处理程序解析JS传递过来的Json数据，并进行解析，写入DataTable中，然后写入数据库

   

[csharp] view plaincopyprint?  

1. <%@ WebHandler Language="C#" Class="AddTeachCourse" %>  
2. /******************************************************************************* 
3.  *文    件：AddTeachCourse.ashx 
4.  *作    者：mzj 
5.  *所属小组：评教小组 
6.  *文件说明：添加授课信息 
7.  *创建日期：2013年2月6日17:57:01 
8.  *修改作者： 
9.  *修改日期： 
10.  *修改描述： 
11.  *版 本 号：V1.0 
12.  *版本号变更记录：      
13. ********************************************************************************/  
14. using System;  
15. using System.Web;  
16. using System.Collections.Generic;  
17. using System.Linq;  
18. using System.Data;  
19.   
20. //json使用命名空间  
21. using Newtonsoft.Json;  
22. using Newtonsoft.Json.Linq;  
23.   
24. using Newtonsoft.Json.Converters;  
25.   
26. using System.IO;  
27. using System.Text;  
28.   
29. using TeachSystem.BLL.TeachingBLL;  
30. using TeachSystem.Entity.TeachingEntity;  
31.   
32.   
33. public class AddTeachCourse : IHttpHandler  
34. {  
35.   
36.     public void ProcessRequest(HttpContext context)  
37.     {  
38.         context.Response.ContentType = "text/plain";  
39.    
40.           
41.         //创建一个名为ds_StuTeacherCourse的DataSet  
42.         //(用于存放表：学生、教师、课程关系表，学生、上课班关系表，课程分配上课班关系表)  
43.         DataSet dsStuTeacherCourse = new DataSet("ds_StuTeacherCourse");  
44.         //手动创建的新数据表-学生、教师、课程关系数据表  
45.         DataTable dtAddStudentTeaherCourse = new DataTable("dt_AddStudentTeaherCourse"); //创建一个名为dt_AddStudentTeaherCourse的DataTalbe  
46.         //为dt_AddStudentTeaherCourse表内建立Column（表头）,添加数据列:StudentID，Indexing，IsAvailable  
47.         dtAddStudentTeaherCourse.Columns.Add(new DataColumn("StudentID", typeof(string)));  
48.         dtAddStudentTeaherCourse.Columns.Add(new DataColumn("Indexing", typeof(int)));  
49.         dtAddStudentTeaherCourse.Columns.Add(new DataColumn("IsAvailable", typeof(string)));  
50.   
51.         //手动创建的新数据表-学生、上课班关系数据表  
52.         DataTable dtAddStudentTeachClass = new DataTable("dt_AddStudentTeachClass"); //创建一个名为dt_AddStudentTeachClass的DataTalbe  
53.         //为dt_AddStudentTeachClass表内建立Column（表头）,添加数据列:StudentID，TeachClassID，IsAvailable  
54.         dtAddStudentTeachClass.Columns.Add(new DataColumn("StudentID", typeof(string)));  
55.         dtAddStudentTeachClass.Columns.Add(new DataColumn("TeachClassID", typeof(string)));  
56.         dtAddStudentTeachClass.Columns.Add(new DataColumn("IsAvailable", typeof(string)));  
57.   
58.         //手动创建的新数据表-课程分配、上课班关系数据表  
59.         DataTable dtAddCourseTeachClass = new DataTable("dt_AddCourseTeachClass"); //创建一个名为dt_AddStudentTeachClass的DataTalbe  
60.         //为dt_AddCourseTeachClass表内建立Column（表头）,添加数据列:TeachClassID，Indexing，IsAvailable  
61.         dtAddCourseTeachClass.Columns.Add(new DataColumn("TeachClassID", typeof(string)));  
62.         dtAddCourseTeachClass.Columns.Add(new DataColumn("Indexing", typeof(int)));  
63.         dtAddCourseTeachClass.Columns.Add(new DataColumn("IsAvailable", typeof(string)));  
64.         dtAddCourseTeachClass.Columns.Add(new DataColumn("OddEven", typeof(string)));  
65.         dtAddCourseTeachClass.Columns.Add(new DataColumn("StuNum",typeof(int)));  
66.           
67.         //获取前台传递过来的授课JSON字符串数组  
68.         string ss = context.Request.Form["TeachCourseJson"];  
69.         //反序列化获取的JSON字符串数组  
70.         JArray javascript = (JArray)JsonConvert.DeserializeObject(ss);  
71.         //依次遍历反序列化的json字符串数组  
72.         for (int i = 0; i < javascript.Count; i++)  
73.         {  
74.             //将一个个反序列化的JSON字符串数组转换成对象，并将转换后的对象的值依次赋给各变量  
75.             JObject obj = (JObject)javascript[i];  
76.             string strTeacherID = obj["TeacherID"].ToString();                 //教师ID  
77.             string strCourseID = obj["CourseID"].ToString();                   //课程ID  
78.             string strTeachClassID = obj["TeachClassID"].ToString();           //上课班ID  
79.             int intIndexing = Convert.ToInt32(obj["Indexing"].ToString());     //课程分配ID  
80.             int intStuNum = Convert.ToInt32(obj["StuNum"].ToString());         //授课学生人数  
81.             string strStudentID = obj["StudentID"].ToString();                 //学生ID  
82.   
83.             //添加学生、教师、课程关系信息表的新行  
84.             DataRow drAddStudentTeaherCourse = dtAddStudentTeaherCourse.NewRow();//注意这边创建dt的新行的方法。指定类型是DataRow而不是TableRow，然后不用new直接的用创建的DataTable下面的NewRow方法。  
85.             //学生、教师、课程关系信息表对应的各列值  
86.             drAddStudentTeaherCourse["StudentID"] = strStudentID;         //学生ID  
87.             drAddStudentTeaherCourse["Indexing"] = intIndexing;           //课程分配ID  
88.             drAddStudentTeaherCourse["IsAvailable"] = "是";  
89.             dtAddStudentTeaherCourse.Rows.Add(drAddStudentTeaherCourse);  //将一整条数据写入表中  
90.   
91.             //添加学生、上课班关系信息表的新行  
92.             DataRow drAddStudentTeachClass = dtAddStudentTeachClass.NewRow();//注意这边创建dt的新行的方法。指定类型是DataRow而不是TableRow，然后不用new直接的用创建的DataTable下面的NewRow方法。  
93.             //学生、上课班关系信息表对应的各列值  
94.             drAddStudentTeachClass["StudentID"] = strStudentID;             //学生ID  
95.             drAddStudentTeachClass["TeachClassID"] = strTeachClassID;       //上课班ID  
96.             drAddStudentTeachClass["IsAvailable"] = "是";  
97.             dtAddStudentTeachClass.Rows.Add(drAddStudentTeachClass);  //将一整条数据写入表中  
98.   
99.         }  
100.          
101.           
102.             JObject objs = (JObject)javascript[0];  
103.             
104.             string strTeachClassIDs = objs["TeachClassID"].ToString();  
105.             int intIndexings = Convert.ToInt32(objs["Indexing"].ToString());  
106.             int intStuNums = Convert.ToInt32(objs["StuNum"].ToString());  
107.               
108.              
109.            //添加课程分配、上课班关系信息表的新行  
110.             DataRow drAddCourseTeachClass = dtAddCourseTeachClass.NewRow();//注意这边创建dt的新行的方法。指定类型是DataRow而不是TableRow，然后不用new直接的用创建的DataTable下面的NewRow方法。  
111.             //课程分配、上课班关系信息表对应的各列值  
112.             drAddCourseTeachClass["TeachClassID"] = strTeachClassIDs;  
113.             drAddCourseTeachClass["Indexing"] = intIndexings;  
114.             drAddCourseTeachClass["IsAvailable"] = "是";  
115.             drAddCourseTeachClass["OddEven"] = null;  
116.             drAddCourseTeachClass["StuNum"] = intStuNums;  
117.             dtAddCourseTeachClass.Rows.Add(drAddCourseTeachClass);  //将一整条数据写入表中  
118.               
119.   
120.         //将各表加入DataSet中:  
121.         dsStuTeacherCourse.Tables.Add(dtAddStudentTeaherCourse);  
122.         dsStuTeacherCourse.Tables.Add(dtAddStudentTeachClass);  
123.         dsStuTeacherCourse.Tables.Add(dtAddCourseTeachClass);  
124.   
125.         //将DataSet中数据表导入数据库  
126.         Boolean flagImportStuTeacherCourse = new TeachCourseBLL().ImportStudentTeacherCourse(dsStuTeacherCourse);         
127.         //JsonReader reader = new JsonReader(new StringReader(jsonText))  
128.           
129.         //string s = context.Request.Form["TeachCourseJson"];&nb