HTML Doctype For Includes (Visual Studio Or HTML Generic)

Is there a doctype for includes, which tells validators (at design time, my IDE VS2010) not to check an included HTML fragment (or do a lenient check instead). I have a main page (

Solution 1:

Do those errors persist after installing Web Standards Update for Microsoft Visual Studio 2010 SP1?

If you find it really annoying, you could always disable it completely under tools -> options -> text editor -> html -> validation