Re: Do I need <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" ..... in asp.net 2.0 ?

i think the answer to his question is - yes
leaving out the DTD can make the browser rendering of your html look bad



<MatsL@xxxxxxxxxxxxxxxxx> wrote in message
news:%23rzsSHvxGHA.1300@xxxxxxxxxxxxxxxxxxxxxxx
Hi Rolf,
The doctype instructs the web browser how to render the page.
When you have the doctype for xhtml IE will render the page with
standards mode, which is good since it will look (almost) the same in
all modern browsers.
The code that is generated from the server controls is not affected by
the doctype, it's just an instruction for the web browser.



Rolf Welskes wrote:
Hello,
thank you for your informations,

but the main-question is not answered.

if I have no doctype in my html pages,
what is with the code that asp generates for example from
server-controls?

Means if I have a complex server control which generates html for
example
for IE6.0
and my aspx pages have not the doctype for xhtml, is the generated code
xhtml and can it look bad without
the doctype declaration?

Thank you.
Rolf Welskes





<MatsL@xxxxxxxxxxxxxxxxx> schrieb im Newsbeitrag
news:ufgc1LrxGHA.4240@xxxxxxxxxxxxxxxxxxxxxxx
To get the table to fill your screen you have to set the height of the
body element. The body element is only rendered as high as it needs to
be.

Replace <body> with <body style="height: 100%;"> and it will work with
the
doctype.

One should also note that the doctype makes IE render the HTML
according
to standard. Without it IE will render the page in quirks mode which is
pretty much guaranteed to look like crap in all other browsers.

I recommend everyone to always put a doctype in your html documents to
make sure that your work looks good when rendered according to
standard.

Remember this: if you don't follow standards today you can count on
having
to do it all over in a couple of years when your outdated IE-only html
has
been deprecated!
(I just rewrote an old project...)

//Mats

Steven Cheng[MSFT] wrote:
Hello Rolf,

As for the following markup fragment you mentioned:

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

It is the XML DocType declaration of XHTML 1.0 Transitional conform
document. That means if you want to make your page's ouput HTML be
conform to "XHTML 1.0 Transitional" standard, you must include this
declaration fragment. for example, if you remove this declaration and
try
validating your page's output html through the W3C xhtml validator:

http://validator.w3.org/

You will get valiation error indicate that the page is not XHTML
compatible.

Of course, if you do not care about the XHTML 1.0 Transitional
compatibility for all the pages in your web application, you can
simply
remove all these markup declaration. And so far most popular
webbrowsers
can correctly handle both XHTML validated or non-XHTML validated html
document gracefully, you do not need to care much about this.

BTW, as for VS 2005, it by default use XHTML 1.0 Transitional as the
default HTML validation rule and the default webform template is also
adding this XHTML doctype declaration. You can find the template file
under the following location:

C:\Program Files\Microsoft Visual Studio
8\Web\WebNewFileItems\CSharp\Webform.aspx

You can customize the template as you like if you have many web pages
or
application will developing without such declaration. But makesure
you've
backuped all the default templates.

Hope this helps.

Sincerely,

Steven Cheng

Microsoft MSDN Online Support Lead

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