title: Pop-up with radiobuttons
body: <p>I have a registration page where i have a register button and when it is clicked i have to get a pop up with radio buttons like parent and child.How to do this without javascript?I am using c# and asp.net.</p>
  
  <pre><code> &lt;body&gt;
   &lt;form id="form1" runat="server"&gt;
   &lt;div&gt;
  
      &lt;asp:ScriptManager ID="ScriptManager1" runat="server"&gt;
      &lt;/asp:ScriptManager&gt;
  
  
      &lt;asp:RadioButtonList ID="RadioButtonList1" runat="server" AutoPostBack="True" 
          Visible="False"&gt;
          &lt;asp:ListItem&gt;parent&lt;/asp:ListItem&gt;
          &lt;asp:ListItem&gt;child&lt;/asp:ListItem&gt;
      &lt;/asp:RadioButtonList&gt;
      &lt;asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="Button" /&gt;
      &lt;cc1:ModalPopupExtender ID="RadioButtonList1_ModalPopupExtender"     runat="server"           PopupControlID="form1"
          DynamicServicePath="" Enabled="True" TargetControlID="Button1"&gt;
      &lt;/cc1:ModalPopupExtender&gt;
  
  
  &lt;/div&gt;
  &lt;/form&gt;
  &lt;/body&gt;
  </code></pre>