ASP.NET 2.0 Themes and Custom Controls

Found an interesting one today on this old topic.

As you know you can skin your custom controls by adding a <%@ Register tag in your skin file.
This works great.

But today I made a new company template and no way to make it work!
As soon as I add one of my custom control definition in the skin file I get an error :
"Type FooCompany.Agile.Web.UI.WebControls.XYZ is not defined".

After 30min of headache I managed to make it work.
The problem was the Namespace containing my controls is FooCompany.Agile.Web.UI.WebControls and the Theme containing the skin is named FooCompany.
So I renamed my theme FooCompany_Design and everything is fine.

Just after that I googled and (of course!) found that the problem was already solved 1 year before there :
http://odetocode.com/Blogs/scott/archive/2005/09/01/2145.aspx

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