关于循环 GridView 及 Repeater 中的数据行的问题!

GridView 中嵌套 Repeater ，显示分级数据：

在 GridView1 的 GridView1_DataBound 事件中这样写：

  protected   void  GridView1_DataBound( object  sender, EventArgs e)
    {
         foreach  (GridViewRow row  in  GridView1.Rows)
        {
            Label LabelID  =  row.FindControl( " Label1 " )  as  Label;
             string  parentID  =  LabelID.Text.ToString();
            Repeater subRepeater  =  row.FindControl( " Repeater1 " )  as  Repeater;
             string  sql  =   " select * from CandidateUser where WantPosition = ' " + parentID + " ' order by UID asc " ;
            DataSet ds  =  newdb.CommonDataSet(sql);
            subRepeater.DataSource  =  ds.Tables[ 0 ].DefaultView;
            subRepeater.DataBind();
            
        }

    }

然后，当点击按钮，提交此页面,需要循环 GridView1 和 Repeater1 中的数据取值，存入数据库，如何取值呢，这样做：

protected   void  Button1_Click( object  sender, EventArgs e)
{
   foreach  (GridViewRow row  in  GridView1.Rows)
        {
            Label LabelID  =  row.FindControl( " Label1 " )  as  Label;  // 竞聘职位的ID号Label
            parentID  =  LabelID.Text.ToString(); // 竞聘职位的ID号


            Repeater subRepeater  =  row.FindControl( " Repeater1 " )  as  Repeater;

             foreach  (RepeaterItem subrow  in  subRepeater.Items)
            {
                Label LabelUserID  =  subrow.FindControl( " Label2 " )  as  Label;   // 竞聘人的身份ID号Label
                CandidateUserID  =  LabelUserID.Text.ToString(); // 竞聘人的身份ID号

                TextBox txbScore  =  subrow.FindControl( " TextBox1 " )  as  TextBox;   // 分数 TextBox1
                CandidateScore  =  txbScore.Text.ToString(); // 分数

                CheckBox ckbGiveUp  =  subrow.FindControl( " CheckBox1 " )  as  CheckBox;   // 分数 TextBox1
                 if  (ckbGiveUp.Checked  ==   true )
                {
                    giveup  =   " 1 " ;
                }
                 else
                {
                    giveup  =   " 0 " ;
                }


                sql  =   " insert into VoteTable (PositionID,CandidateUserID,CandidateUserScore,GiveUpVote,WhoSendTheVote) values (' "   +  parentID  +   " ',' "   +  CandidateUserID  +   " ',' "   +  CandidateScore  +   " ',' "   +  giveup  +   " ',' "   +  getName  +   " ') " ;
                newdb.ModifyData(sql);
         
            }


        }

 
 

}