用JavaScript对GridView进行上移下移，保存排序

<script type="text/javascript" language="javascript">
        //移动排序
        function Move(part)
        {
          var count= document.getElementById('HidCount').value;
          var temp=0;
          var index=0;
          var indexid=0
          for( i=0 ;i<=count;i++)
          {
            var bc=document.getElementById('GVLesson_Row_'+i).style.backgroundColor;
             if(bc=='#f8e0e0')
            { 
                index=document.getElementById('GVLesson_Row_'+i).rowIndex;
                indexid=i;
                //alert("GoUp  "+index);
                temp=temp+1;
            }          
          }
          if(temp<0||temp>1)
          {
            alert("只能选择一节课程！");
            return;
          }
          //上移
          if(part=='U')
          {  
              if(index==1)
              {
                alert("第一行无法上移！");
                return;
              }         
              GVLesson.rows[index-1].swapNode(GVLesson.rows[index]);          
               for(obj in GVLesson.rows[index-1].cells[0].children)
               {
                   document.form1.elements[obj].checked='checked';
               }
               //得到单一列的索引
//               var tempaa=GVLesson.rows[index-1].cells[2];
//         
//                alert(tempaa.innerHTML)
//                for(i=0;i<tempaa.childNodes.length;i++)
//                {
//                     if(tempaa.childNodes[i].tagName=="INPUT")
//                     {
//                        alert(tempaa.childNodes[i].value);
//                        alert(document.getElementById('GVLesson_Row_'+tempaa.childNodes[i].value+'_Hid_index').value);
//                     }                
//                }
//              
          }
          else//下移
          {
              if(index-1 == count)
              {
                alert("最后一行无法下移！");
                return;
              }
              GVLesson.rows[index+1].swapNode(GVLesson.rows[index]);
              for(obj in GVLesson.rows[index+1].cells[0].children)
              {
                   document.form1.elements[obj].checked='checked';
              }
          }    
        }
        var indexID="";
        var indexValue="";
        //保存排序
        function saveTaxis()
        {
            var indexcount=GVLesson.rows.length;//表总行数
            //alert(indexcount);
            for(i=1;i<indexcount;i++)//客户端课程表
            {
                var tempaa=GVLesson.rows[i].cells[2];
                indexID = indexID + i + ",";
                //alert(tempaa.innerHTML)
                for(t=0;t<tempaa.childNodes.length;t++)
                {
                     if(tempaa.childNodes[t].tagName=="INPUT")
                     {
                      //alert(tempaa.childNodes[t ].value);//得到隐藏域的值
                      indexValue = indexValue + tempaa.childNodes[t ].value + ",";
                     }                
                }
            }
            //alert(indexID);
            //alert(indexValue);
            AjaxRequestobj();
        }
        //使用Ajax保存排序。
        function AjaxRequestobj()
        {
            alert(indexID);
            alert(indexValue);
            var code="";
            var http_request = false;     
            if (window.XMLHttpRequest) { // Mozilla, Safari,...
            http_request = new XMLHttpRequest();
            if (http_request.overrideMimeType) {
                http_request.overrideMimeType('text/xml');
            }
            } else if (window.ActiveXObject) { // IE
                try {
                    http_request = new ActiveXObject("Msxml2.XMLHTTP");
                } catch (e) {
                    try {
                        http_request = new ActiveXObject("Microsoft.XMLHTTP");
                    } catch (e) {}
                }
            }

            if (!http_request) {
                alert('Giving up :( Cannot create an XMLHTTP instance');
                return false;
            }
            else
            {
                http_request.open("GET","TeacherLesson.aspx?ID=" + indexID + "&VL=" + indexValue,true);
                http_request.send();
                if (http_request.readyState == 4)
                {
                   if (http_request.status == 200)
                   {
                        alert(http_request.responseText);
                        code=http_request.responseText;
                       
                        if(code=="1")
                            window.location.reload();
                        else
                            alert("操作失败请重试！");
                    }
                    else
                        window.location.reload();
                }
                else
                    window.location.reload();   
            }
        }
</script>       

后台代码：

private void AjaxRequest()
    {
        string ID = Request["ID"].ToString();
        string VL = Request["VL"].ToString();
        string[] IndexID = ID.Split(',');
        string[] IndexValue = VL.Split(',');
        bool test = true;
        for (int i = 1; i < IndexID.Length; i++)
        {
            if (!new FCD_Lesson().Updata_LessonTaxis(Convert.ToInt32(IndexValue[i - 1].ToString()), Convert.ToInt32(IndexID[i - 1].ToString())))
            {
                test = false;
                break;
            }
        }
        if(test)
            Response.Write("1");
        else
            Response.Write("0");
        Response.Flush();
        Response.End();
    }