Greetings. I am new in DNN and MS based web-development. So i guess my problem is solved quite simple.

I have several colored versions of site design. They all have the same layout and differs only in backgrounds and images paths. So i want them all to just redefine some base skin css, taking from it all base makeup and base css.

So i created the following files:

/Portals/_default/Skins/Base/base.ascx - layout
/Portals/_default/Skins/Base/base.css - layour related styles

/Portals/_default/Skins/%colorHere%/skin.ascx - entry point
/Portals/_default/Skins/%colorHere%/skin.css - color related styles


base.ascx contains all makeup, @Registers, link for a base.css file etc. While skin.css should only contain link for it's own skin.css and base.ascx inclusion.

Skin.ascx file contents:
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<%@ Control Language="vb" CodeBehind="~/admin/Skins/skin.vb" AutoEventWireup="false"
Explicit="True" Inherits="DotNetNuke.UI.Skins.Skin" %>
<%@ Register TagPrefix="inc" TagName="a" Src="\Portals\_default\Skins\Base\base.ascx" %>

<style type='text/css'>
@import '<%= SkinPath %>/skin.css';
</style>

<inc:a runat="server"/>
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base.ascx file contents:
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<%@ Control Language="vb" CodeBehind="~/admin/Skins/skin.vb" AutoEventWireup="false"
Explicit="True" Inherits="DotNetNuke.UI.Skins.Skin" %>
<%@ Register TagPrefix="dnn" TagName="LOGO" Src="~/Admin/Skins/Logo.ascx" %>
[.... lots of registers here....]

<style type='text/css'>
@import '/Portals/_default/Skins/Base/base.css';
</style>

[.... lots of makup here .....]
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When i'm trying to apply a color skin i'm getting NullReferenceException.
I need to have SkinPath variable available at both base.ascx and skin.ascx.