I have the code below, the group name didn't work, the user can choose any more than one from radio button
<asp:ListView ID="lstActive" runat="server" OnItemDataBound="lstAllWActive_ItemDataBound">
<ItemTemplate>
<tr>
<td><%# Eval("PollQuestion") %></td>
<td>
<asp:HiddenField ID="hdPollId" runat="server" Value='<%#Eval("PollId")%>' />
<asp:ListView ID="lstOptionWPrecentage" runat="server">
<ItemTemplate>
<div class='col-md-4'>
<asp:HiddenField ID="HiddenField1" runat="server" Value='<%#Eval("Id")%>' />
<asp:RadioButton ID="po1" runat="server" GroupName="jhhhh" ValidationGroup="poll" />
<label for='po1'><%# Eval("OptionText") %> </label>
</div>
</ItemTemplate>
</asp:ListView>
</td>
<td><%# Eval("PollName") %> </td>
</tr>
</ItemTemplate>
</asp:ListView>