江湖救急啊，RadioButtonList的索引项问题

Question

for (int i = 0; i < Repeater1.Items.Count; i++)
        {
            RadioButtonList r = Repeater1.Items[i].FindControl("RadioButtonList1") as RadioButtonList;
            HiddenField hid = Repeater1.Items[i].FindControl("HiddenField1") as HiddenField;
            int answer = r.SelectedIndex < 0 ? 0 : r.SelectedIndex + 1;
            new AnswerSaveManager().Add(AnswerID, answer.ToString(), Convert.ToInt32(hid.Value), 1);
        }
单选题我有四个选项，比方我有四题，我分别选中A,B,C,D相当于数据库的1,2,3,4可数据库存的四个数据是1,1,1,2（应该存的是1,2,3,4）我调试看的数组count都为4个答案，为什么答案会这样？

Answer 1

设断点看AnswerID, answer.ToString()是不是1，2，3，4啊

Answer 2

int answer = r.SelectedIndex < 0 ? 0 : r.SelectedIndex + 1;
你得到1,1,1,2，说明你前面几次调用new AnswerSaveManager().Add()都是r.SelectedIndex < 0估计你没有给r设定默认选中项，导致r.SelectedIndex 始终都是-1,直到某个时候你点了一下

Answer 3

楼主还是用js写比较好，个人感觉.
<asp:RadioButtonList ID="RadioButtonList1" runat="server" RepeatDirection="Horizontal">
                                    <asp:ListItem Value="1" Selected="True">A</asp:ListItem>
                                    <asp:ListItem Value="2">B</asp:ListItem>
                                    <asp:ListItem Value="3">C</asp:ListItem>
                                    <asp:ListItem Value="4">D</asp:ListItem>
                                </asp:RadioButtonList>
CS:
RadioButtonList1.SelectedValue 直接就有选中的值，不用麻烦的遍历吧.?

Answer 4

int answer = r.SelectedIndex < 0 ? 0 : r.SelectedIndex + 1;
調試一下看你的這個是些什麼值

Answer 5

for (int i = 0; i < this.Repeater1.Items.Count; i++)
        {
            if (this.Repeater1.Items[i].FindControl("RadioButtonList1") is CheckBoxList)
            {
                foreach (ListItem li in (this.Repeater1.Items[i].FindControl("RadioButtonList1") as CheckBoxList).Items)
                {
                    if (li.Selected)
                    {
                        //str+=li.Value+",";
                    }
                }
            }
        }

Answer 6

我调试的，断点显示的SelectIndex值都是0或1,我现在把那段话成这样了
int answer = r.SelectedIndex + 1;但还是一样，