SharePoint 2010: Automatically Reset to the Default Theme in Code

When you want to reset your current theme that has been applied to your SharePoint site in code, you may try code like:

web.ApplyTheme("default");

but that won’t work because there is no “default” theme.
After looking in the SPTHEMES.XML file found in the C:Program FilesCommon FilesMicrosoft SharedWeb Server Extensions14TEMPLATELAYOUTS1033 folder, you do see there is a theme with a theme name of “none”. That makes sense so you try:

web.ApplyTheme("none");

But often that still won’t work. Frustrating. Keep searching and after a review of Microsoft’s documentation on the SPWeb.ApplyTheme method, you see it.

Caution Use this method only when the UI is in backward compatibility mode (SPWeb.UIVersion = 3).

Not too many of us use UIVersion = 3 in SharePoint 2010, so what do you do now?

Easy. Use the replacement class, ThmxTheme (found in Microsoft.SharePoint.Utilities), in particular the ThmxTheme.RemoveThemeFromWeb method.
Example:

ThmxTheme.RemoveThemeFromWeb(site, true);

Where site is the SPWeb and the bool value states if you wish to also remove the theme’s styles. Setting this to true will remove the theme specific styles that was created when the theme was applied to the web, but I have found that setting this to true can cause issues because of security concerns. I suggest you try settings the bool value to true if you wish to have this method remove theme styles files, but if you receive errors, set this to false and it will likely work. This is not the best for housekeeping, but may make your life easier.

As a quick example, say in a feature receiver when you deactivate a feature, the following code would remove the theme from an entire site collection if the feature is scoped to the site level.

public override void FeatureDeactivating(SPFeatureReceiverProperties properties) { 
 //go and get the root site collection SPSite 
 siteCollection = properties.Feature.Parent as SPSite; 
 if (siteCollection != null) { 
  SPWeb topLevelSite = siteCollection.RootWeb; 
  foreach (SPWeb site in siteCollection.AllWebs) { 
   //reset the theme in case one was applied 
   ThmxTheme.RemoveThemeFromWeb(site, true); 
  } 
 } 
}

One thought on “SharePoint 2010: Automatically Reset to the Default Theme in Code

  1. Mikel October 25, 2012

    Thanks for this article! I was about to have a fit over ApplyTheme not working. Your post helped saved my sanity 🙂

Leave a Comment

Your email address will not be published. Required fields are marked *

Enter Code *

Filed Under

Related

Anyone who has 'attended' a physical meeting by 'conferencing in' in knows the frustrations & limitations that come from not being in the room. You're the voice in the ceiling & not equally represented in the conversation.

This is no longer acceptable.

http://ow.ly/EmFK50Fqqhu

Today, we find ourselves facing the “hybrid work paradox.”

Employees are keen to retain flexibility. At the same time, human-to-human collaboration remains important.

To marry the best of both, hone your strategy, spaces, & tech to suit employee needs.

http://ow.ly/JtVO50Fn8qX

It's the day of the show, y'all!

Join the #PixelMillWebinars this morning at 11am PST for a live panel discussion about what the #digitalworkspace looks like for a #hybrid team, & how #Microsoft365 can empower your users no matter where they're working.

http://ow.ly/q81i50FhITy

IT'S WEBINAR WEEK!

Join the #PixelMillWebinars this Thursday as we welcome key players from @OrchestrySoft, @KieferConsult, and @AP_Mortgage to discuss the hybrid work paradox and how #Microsoft365 can empower your users no matter where they're working.

http://ow.ly/2uc550FfqO6

We've all been itching to get "back to normal," but what does that mean? Are we missing out on valuable lessons learned by trying to return to something that perhaps wasn't working before?

Join us next week for a live panel discussion on the new normal.

http://ow.ly/CfsU50FdQXv

Subscribe to PixelMill's
E-news

* indicates required

Let's Talk Digital
Workspaces Today

Get In Touch