I have various html tags (related to jquery mobile) that Visual Studio is flagging as not valid attributes: For exmaple: <pre class="prettyprint"><code><div data-role="page" id="my_id" data-theme="b" data-position="fixed"> </code></pre> Gets amongst others: <pre class="prettyprint"><code>Validation (XHTML 1.0 Transitional): Attribute 'data-role' is not a valid attribute of element 'div' </code></pre> As you know, data-* are valid attributes of div in HTML 5. I'm not sure how this is validated, though I think via DTDs and xmlns, so the head of the page is the default auto generated by Visual Studio: <pre class="prettyprint"><code><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org /TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> </code></pre> I know they are only warnings, but my experience is that if you leave lots of warnings that are invalid, then all the warnings that are valid get lost in the middle. Is there any way to tell Visual Studio that these warnings should not be shown without completely disabling html validation? (Visual Studio 2010 if it is relevant.)

You should install the Web Standards Update and then switch to HTML5 as your default schema: <img src="https://i.stack.imgur.com/L231b.png" alt="The settings dialog for changing your default schema"> In addition, you should not use the XHTML 1.0 transitional opening incantation when using HTML 5 attributes. Instead, use the usual HTML5 one: <pre class="prettyprint"><code><!DOCTYPE html> <html> </code></pre>

How to make Visual Studio Handle HTML 5 Tags without warning

Tags:

I have various html tags (related to jquery mobile) that Visual Studio is flagging as not valid attributes: For exmaple:

<div data-role="page" id="my_id" data-theme="b" data-position="fixed">

Gets amongst others:

Validation (XHTML 1.0 Transitional): Attribute 'data-role' is not a valid attribute of element 'div'

As you know, data-* are valid attributes of div in HTML 5.

I'm not sure how this is validated, though I think via DTDs and xmlns, so the head of the page is the default auto generated by Visual Studio:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org /TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml">

I know they are only warnings, but my experience is that if you leave lots of warnings that are invalid, then all the warnings that are valid get lost in the middle.

Is there any way to tell Visual Studio that these warnings should not be shown without completely disabling html validation?

(Visual Studio 2010 if it is relevant.)

763

asked Jun 22 '11 22:06

Fred Thomas

1 Answers

You should install the Web Standards Update and then switch to HTML5 as your default schema:

The settings dialog for changing your default schema

In addition, you should not use the XHTML 1.0 transitional opening incantation when using HTML 5 attributes. Instead, use the usual HTML5 one:

<!DOCTYPE html> <html>

159

answered Nov 25 '22 05:11

Domenic

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