ASP.NET Change IE document mode?
Question
I've got a problem with an ASP.NET project. It uses .NET Framework 2 (old I know but can't update for other reasons) and when you open the site in Internet Explorer there are some bullet points which do not show. Set-up like:
<ul class="abc"><li>Bullet point 1</li></ul>
However when I open Internet Explorer developer tools by pressing F12 I can change the document mode from "Internet Explorer 7 Standards (Page Default)" to "Internet Explorer 8 Standards" the bullet points show correctly.
How can I change my solution so that all pages are set to use the Internet Explorer 8 standards by default?
3 answers
solution1
0 2015-03-10 14:09:27
Either simply just use <!DOCTYPE html> , or add this to your Web.config:
<system.webServer>
<httpProtocol>
<customHeaders>
<add name="X-UA-Compatible" value="IE=Edge,chrome=1" />
</customHeaders>
</httpProtocol>
</system.webServer>
You can also use <meta http-equiv="X-UA-Compatible" content="IE=Edge,chrome=1" /> instead of a header, but it causes page redrawing.
solution2
0 2015-03-10 14:09:33
Check the doctype. If I remember correctly the XHTML 1.0 strict doctype will enforce IE 7 mode. Also, you can use the X-UA compatible meta tag like so to put it in IE-9 mode: . Essentially, this isn't a function of ASP.Net at all. Your browser determines what engine to use first by your doctype then second by any over-riding features you've told it to use such as X-UA.
More information can be found at: https://msdn.microsoft.com/en-us/library/jj676915%28v=vs.85%29.aspx
The key point to remember with using X-UA is that it must be the very first tag in your . If you put it second it won't work.
solution3
0 2015-03-10 15:08:55
Adding this under the DOCTYPE worked.
<meta http-equiv="x-ua-compatible" content="IE=Edge" >
It did not work when that was between the head tags. You can changed edge to 7/8/9 etc to suit.
Haven't tried but you need to have DOCTYPE such as <!DOCTYPE html>
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