RadioList动态加载显示的问题

[待解决问题]

由于项目需要，编写了一个多态加载radiolist控件，显示出现了问题，直接上代码：

 1 Literal littxt = new Literal();
 2 
 3                 Literal litti = new Literal();
 4 
 5                 RadioButtonList cdk = new RadioButtonList();
 6 
 7                 cdk.ID = "cdk" + i.ToString();
 8 
 9                 cdk.TextAlign=TextAlign.Right;
10 
11 
12                 cdk.RepeatDirection = RepeatDirection.Vertical;
13 
14                 littxt.Text = i.ToString() + "、" + Server.HtmlEncode(sdr["TestContent"].ToString()) + "<br><Blockquote>";
15 
16                 litti.Text = "</Blockquote>";
17 
18                 //添加选项A
19                 cdk.Items.Add("A." + Server.HtmlEncode(sdr["TestAns1"].ToString()));
20 
21                 //添加选项B
22                 cdk.Items.Add("B." + Server.HtmlEncode(sdr["TestAns2"].ToString()));
23 
24                 //添加选项C
25                 cdk.Items.Add("C." + Server.HtmlEncode(sdr["TestAns3"].ToString()));
26 
27                 //添加选项D
28                 cdk.Items.Add("D." + Server.HtmlEncode(sdr["TestAns4"].ToString()));
29 
30                 cdk.Font.Size = 11;
31 
32                 for (int j = 1; j <= 4; j++)
33                 {
34                     cdk.Items[j - 1].Value = j.ToString();
35                 }
36 
37                 Ans += sdr[6].ToString();
38 
39                 if (Session["a"] == null)
40                 {
41                     Session["ANS"] = Ans;
42                 }
43 
44                 Panel1.Controls.Add(littxt);
45                 Panel1.Controls.Add(cdk);
46                 Panel1.Controls.Add(litti);
47 
48                 i++;
49                 TNum++;