repeater回调方法失效

Question

   在repeater中放了radiobutton控件且autopostback=true当点击以后并没有调用repeater的回调方法
protected void Repeater1_ItemCommand(object source, RepeaterCommandEventArgs e)
    {    }但是ImageButton控件却可以！
什么原因呢？

Answer 1

RadioButtonList 
<asp:RadioButtonList ID="RadioButtonList1" AutoPostBack="true" runat="server">
            <asp:ListItem>1</asp:ListItem>
            <asp:ListItem>2</asp:ListItem>
            <asp:ListItem>3</asp:ListItem>
        </asp:RadioButtonList>

Answer 2

不是RadioButtonList 是RadioButto
  <asp:RadioButton ID="RadioButton1" runat="server" AutoPostBack="True" />