Как реализовать Ajax для списка флажков и нажатия кнопки

Question

<asp:CheckBoxList ID="chkProductOption" RepeatColumns="2" runat="server" AutoPostBack="false">
</asp:CheckBoxList>
=====================
<asp:Button ID="btnShowContent" CssClass="chkbox-btn" runat="server" OnClick="btnShowContent_Click" 
/==================
<asp:ListView ID="lvProductInfo" runat="server">
     <ItemTemplate>
         <ul class="list article">
             <li class="art-twitter margin_topten">
                 <a onclick="window.open();" href='<%# DataBinder.Eval(Container.DataItem, "ReadMoreUrl")%>' runat="server">
             <%# DataBinder.Eval(Container.DataItem, "ProductId")%></a> </li>
             <li class="art-date" runat="server">'<%# DataBinder.Eval(Container.DataItem, "DescDate")%>'</li>
             <li>
                 <div runat="server">
                  ----------


                     <%# DataBinder.Eval(Container.DataItem, "ProductDesc")%>
                 </div>
                 <em><a onclick="window.open();" href='<%# DataBinder.Eval(Container.DataItem,"ReadMoreUrl")%>' runat="server">
             <%# DataBinder.Eval(Container.DataItem, "ReadMoreText")%></a> </em></li>
         </ul>
     </ItemTemplate>
</asp:ListView>