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Decorating RadWindow When DecorationZoneID Is Set

RadFormDecorator lets you style controls that are inside of the ContentTemplate of RadWindow. However, when the RadFormDecorator's property DecorationZoneID is set, the content of RadWindow will not be decorated. This behaviour manifests because RadWindow moves its contents in the DOM when it is opened - i.e. controls declared in its ContentTemplate are no longer in the same place in the markup where they were declared. This needs to be done in order to allow the popup element of the RadWindow to be shown above all other elements, so that it does not inherit any visibility restrictions from its parent elements (such as the CSS display property being set to none).

Therefore this scenario is not supported by FormDecorator as the ContentTemplate and its controls are getting out of the scope of DecorationZoneID. A simple solution to this scenario could be to decorate the content of the RadWindow with custom JavaScript through FormDecorator's client-side method - decorate(). For example:

<script type="text/javascript">
    function openRadWindowDecorated() {
        var oWnd = $find('<%= RadWindow1.ClientID %>');;
        $find('<%=FormDecorator1.ClientID %>').decorate(oWnd.get_contentElement());
<telerik:RadFormDecorator RenderMode="Lightweight" ID="FormDecorator1" runat="server" DecoratedControls="All"
    DecorationZoneID="div1" Skin="Metro"></telerik:RadFormDecorator>
<asp:Button ID="Button1" Text="Open RadWindow" runat="server" OnClientClick="openRadWindowDecorated();return false;" />
<br />
<br />
<div id="div1" style="width: 300px">
        <legend>Decoration Zone</legend>
        <asp:Button ID="Button2" runat="server" Text="ASP Button" />
        <input type="text" value="Input text" />
    <telerik:RadWindow RenderMode="Lightweight" runat="server" ID="RadWindow1" Title="This is RadWindow" Height="200px"
            <asp:RadioButtonList ID="RadioButtonList1" runat="server">
                <asp:ListItem Text="ListItem1" Value="1" Selected="True"></asp:ListItem>
                <asp:ListItem Text="ListItem2" Value="2"></asp:ListItem>
            <br />
            <asp:Button ID="Button3" runat="server" Text="ASP Button" />
            <input type="text" value="Input text" />
            <input type="button" value="Input button" />
            <telerik:RadButton RenderMode="Lightweight" ID="RadButton1" runat="server" Text="RadButton">
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