Q:

No value field in DropDownCheckBoxList in project created from scratch, but present in download package project

I've downloaded DropDownCheckBoxList control from it's official page.
I've created new WebSite inside Visual Studio 2012 using File -> New -> WebSite and I added dll into references.
Then inside Default.aspx I've added this sample code:
<%@ Page Language="C#" AutoEventWireup="true"  CodeFile="Default.aspx.cs" Inherits="_Default" %>
<%@ Register TagPrefix="asp" Namespace="Saplin.Controls" Assembly="DropDownCheckBoxes" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
    <head runat="server">
        <title></title>
        <script src="//ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"> </script>
    </head>
    <body>
        <form id="form1" runat="server">
            <div>
                <asp:DropDownCheckBoxes ID="checkBoxes2" runat="server">
                    <Style SelectBoxWidth="300" />
                    <Items>
                        <asp:ListItem Text="Option 1" Value="1"  />
                        <asp:ListItem Text="Option 2" Value="2"  />
                    </Items>
                </asp:DropDownCheckBoxes>
            </div>
        </form>
    </body>

</html>

After starting debugger my web site is displayed, but when using element inspector in Chrome I noticed that DropDownCheckBoxes isn't rendering value field for checkboxes:

Inside download package that comes with DropDownCheckBoxList is sample project, when I start it I can see that value field is rendered:

It's my fourth hour trying to figure out what is wrong with my code!
How should I create WebSite or WebApplication to have value field rendered?

A:

After another 4 hour searching over SO I found awesome answer:
https://stackoverflow.com/a/15030781/965722
When below entry is added into web.config value isn't rendered
<pages controlRenderingCompatibilityVersion="3.5">

So removing it instantly solved my problems.

