How to disable XAML designer in VS 2011.

I have checked following links possible to default-disable XAML designer in VS 2008?

http://www.dolittle.com/blogs/einar/archive/2008/04/24/quot-disable-quot-xaml-designer-in-visual-studio-2008.aspx

http://weblogs.asp.net/alexeyzakharov/archive/2010/01/27/disable-visual-studio-xaml-designer-better-way.aspx

Problem with above is that intellisense also goes away with setting different text editor.

.net visual-studio xaml visual-studio-2012 designer
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