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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 (which includes HTML parts with T4) such as options. The validator complains on the included html file, that <optgroup> cannot be on root level. This is correct, but not desired for an included file (just containing those options).

Could I give HTML a hint, not to check those things on the included file? The solution could be either specific to my IDE (VS2010) or generic (even better) as of the HTML standard.

<optgroup label="Africa">
    <option>North Africa</option>
    <option>South Africa</option>

VS2010 IDE validator

PS: I prefer not to disable the checks completely (I know this can be done). It is not an option.

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Why are your single template parts linked, so that a search bot could find them? You probably should exclude the whole template directory via a robots.txt. –  feeela Sep 11 '12 at 9:15
It's the IDE complaining, and I talk about design time checks, not(!) browser checks. –  Horst Walter Sep 11 '12 at 9:16
There is no way in Visual Studio to configure/disable validation for just one file. If it bugs you: disable HTML validation for good... –  jorgebg Sep 11 '12 at 9:25
What the hell is XHTML5 anyway? VisualStudio is weird... –  o.v. Sep 11 '12 at 9:41
@o.v. - From the HTML5 spec section 1.6: 'The second concrete syntax is the XHTML syntax, which is an application of XML. ... This specification defines version 5 of the XHTML syntax, known as "XHTML5".' –  Alohci Sep 11 '12 at 10:00

1 Answer 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

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a) Completely disabling the checks is exactly what I not want b) Thanks for the update: Scary one. Many people in the feedback section say, it crashes the css support. When I start the updater, it forces me to download SP1 of VS2010 first - which is already installed. Guess I have to make a complete backup first before I can try it. –  Horst Walter Sep 11 '12 at 10:04

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