New Community Website

Ordinarily, you'd be at the right spot, but we've recently launched a brand new community website... For the community, by the community.

Yay... Take Me to the Community!

The Community Blog is a personal opinion of community members and by no means the official standpoint of DNN Corp or DNN Platform. This is a place to express personal thoughts about DNNPlatform, the community and its ecosystem. Do you have useful information that you would like to share with the DNN Community in a featured article or blog? If so, please contact .

The use of the Community Blog is covered by our Community Blog Guidelines - please read before commenting or posting.

some notes on Skin level doctypes

Since my blog post the other day there have been a number of emails/posts with various questions, so I thought I'd aggregate the answers here to help those curious about further details.

Q. Now that skins support dynamic doctypes, will my existing skins work, or do I need to create the new xml file for skins to work?

A. No, if theres no xml file, then we will continue to use the legacy doctype declaration, so you don't have to make any changes to your existing skins.

Q. Why did you do it this way?

A. Originally I planned to use the existing skin.xml file to store the doctype definitions and store the details in the skin table, but ended up going off the idea due to the effort involved in parsing the details, and the impact on the code. In addition I didn't want to break any of the tools that work with the skin.xml schema such as this. Next I considered parsing the htm/ascx pages during upload for DOCTYPE declarations and storing the details, but found a recommendation not to declare DOCTYPE's in ascx files due to the possibility of multiple declarations being combined when the fragments were combined. Whilst the skinning design of DotNetNuke should ensure that this didn't happen, if someone uploaded a skin declaration as a container it could cause a crash. The final solution of having an optional file per skin supported the desire to preserve backwards compatibility, not break existing tools and allow skin developers to ship different versions of skins with different declarations in the same zip e.g. an xhtml 1.1 strict version of a skin for intranets and a html 4.0 transitional version for internet usage.

One point to note is that the main change was making the doctype a server variable, how you choose to change it is up to you. The default method is using the skin level xml file, but you could also do it via code.

Q. I've looked at your code, and it looks like it was written by a drunken monkey?

A. Thats true, it's definately version 1.0. I'll be tweaking it to use the xmltextreader rather than the poorer performing xmldocument. It's really legacy code from an early test version where I was playing with validating a single xml file, and using XPATH to read the values. In addition we'll be caching the details to make it more performant. I was caught out by the xmas holidays, and didn't get a chance to make the changes before 4.4 was released.

Q. Is this the final implementation?

A. No, I'll be tweaking it as above, and there have also been requests to have a single file that would declare the same doctype for all skin files in a folder e.g. a single doctypes.xml file that would apply that declaration to each skin.

Q. Are there any other compliance changes lined up?

A. Absolutely. At present I'm sourcing a css-based, tableless skin that can then can be used as a reference example (it'll probably use the tableless version of the dnnmenu ) as well as help us test the various compliance standards. In addition there are a number of other tag fixes, and access key support to be checked in. At that point, we'll then be ready to look at core modules and suggest changes to the project teams. 

Finally, I'd like to acknowledge the help of community member, David Wendelken, who volunteered his help and submitted some needed changes.


Comment Form

Only registered users may post comments.


Aderson Oliveira (22)
Alec Whittington (11)
Alessandra Davies (3)
Alex Shirley (10)
Andrew Hoefling (3)
Andrew Nurse (30)
Andy Tryba (1)
Anthony Glenwright (5)
Antonio Chagoury (28)
Ash Prasad (37)
Ben Schmidt (1)
Benjamin Hermann (25)
Benoit Sarton (9)
Beth Firebaugh (12)
Bill Walker (36)
Bob Kruger (5)
Bogdan Litescu (1)
Brian Dukes (2)
Brice Snow (1)
Bruce Chapman (20)
Bryan Andrews (1)
cathal connolly (55)
Charles Nurse (163)
Chris Hammond (213)
Chris Paterra (55)
Clint Patterson (108)
Cuong Dang (21)
Daniel Bartholomew (2)
Daniel Mettler (181)
Daniel Valadas (48)
Dave Buckner (2)
David Poindexter (12)
David Rodriguez (3)
Dennis Shiao (1)
Doug Howell (11)
Erik van Ballegoij (30)
Ernst Peter Tamminga (80)
Francisco Perez Andres (17)
Geoff Barlow (12)
George Alatrash (12)
Gifford Watkins (3)
Gilles Le Pigocher (3)
Ian Robinson (7)
Israel Martinez (17)
Jan Blomquist (2)
Jan Jonas (3)
Jaspreet Bhatia (1)
Jenni Merrifield (6)
Joe Brinkman (274)
John Mitchell (1)
Jon Henning (14)
Jonathan Sheely (4)
Jordan Coopersmith (1)
Joseph Craig (2)
Kan Ma (1)
Keivan Beigi (3)
Kelly Ford (4)
Ken Grierson (10)
Kevin Schreiner (6)
Leigh Pointer (31)
Lorraine Young (60)
Malik Khan (1)
Matt Rutledge (2)
Matthias Schlomann (16)
Mauricio Márquez (5)
Michael Doxsey (7)
Michael Tobisch (3)
Michael Washington (202)
Miguel Gatmaytan (3)
Mike Horton (19)
Mitchel Sellers (40)
Nathan Rover (3)
Navin V Nagiah (14)
Néstor Sánchez (31)
Nik Kalyani (14)
Oliver Hine (1)
Patricio F. Salinas (1)
Patrick Ryan (1)
Peter Donker (54)
Philip Beadle (135)
Philipp Becker (4)
Richard Dumas (22)
Robert J Collins (5)
Roger Selwyn (8)
Ruben Lopez (1)
Ryan Martinez (1)
Sacha Trauwaen (1)
Salar Golestanian (4)
Sanjay Mehrotra (9)
Scott McCulloch (1)
Scott Schlesier (11)
Scott Wilkinson (3)
Scott Willhite (97)
Sebastian Leupold (80)
Shaun Walker (237)
Shawn Mehaffie (17)
Stefan Cullmann (12)
Stefan Kamphuis (12)
Steve Fabian (31)
Steven Fisher (1)
Timo Breumelhof (24)
Tony Henrich (3)
Torsten Weggen (3)
Tycho de Waard (4)
Vicenç Masanas (27)
Vincent Nguyen (3)
Vitaly Kozadayev (6)
Will Morgenweck (40)
Will Strohl (180)
William Severance (5)
What is Liquid Content?
Find Out
What is Liquid Content?
Find Out
What is Liquid Content?
Find Out