Hello Dimi,

thanks for the quick answer!

Dimi Gineva"] You just need add the assembly of that theme to your project and use the appropriate style for the component you need.

Adding the assembly to my existing project does not seem to work. I still can't use the theme or set  the style for a Ribbon Control. 

ThemeManager.SetTheme(Ribbon,"Lipstick") doesn't work. 

Also the theme isn't part of ThemeManager.GetThemes()  ... ThemeManager.CurrentTheme = "Lipstick" leads to "Theme has not been registered".

In the short demo I found in this forum after referencing the assemby everything works just fine ... I'm quite confused at the moment.

Daniel

Hello ... sorry for bothering you again ...

Dimi Gineva"] You got the error because you don’t use
Infragistics.Windows.Themes.Lipstick.DataPresenter presenter = new Infragistics.Windows.Themes.Lipstick.DataPresenter();

thanks for your time

Daniel

Hello,

I am confused in your sample you didn’t add the references to the Lipstick theme, also I didn’t see any loaded type of the theme. I have modified your sample with my last suggestions and was successfully applying the selected style with from the list. I have tested with all build in themes and everything was working fine, without any error.

Please look at the modified sample.

Sincerely,
Dimi
Developer Support Engineer
Infragistics, Inc.

Hello Dimi,

sorry for the confusion ... the sample I added  wasn't the application in question. It was a demo from Alex Fidanov. I was wondering why it was working perfectly only with a reference to an assembly and

WITHOUT 

Infragistics.Windows.Themes.Lipstick.DataPresenter presenter = new Infragistics.Windows.Themes.Lipstick.DataPresenter();

You can try it and just add e.g. the reference to Lipstick.dll ...

As I wrote above my project doesn't work with

Infragistics.Windows.Themes.Lipstick.DataPresenter presenter = new Infragistics.Windows.Themes.Lipstick.DataPresenter();

It throws throws the error I mentioned above. Sorry I'm taking so much time ...

Daniel

rmrop said:

sorry for the confusion ... the sample I added  wasn't the application in question. It was a demo from Alex Fidanov. I was wondering why it was working perfectly only with a reference to an assembly and

WITHOUT 

The only reason that would work is because by default the project's properties have the Debug->Enable the Visual Studio hosting process option checked. When that is checked and you run the project in VS with the debugger attached, the vs hosting process loads every assembly that the process references at the start of the application. This won't happen when you run without the debugger (as would happen when you distribute your application) or if you disable this option. As I mentioned, the CLR will only load assemblies that you reference/use so you have to include some reference to a type in the assembly that you want the CLR to load.

Thanks a lot for your answers,

you were right ... the "hosting process option" in my project was unchecked. After referencing a type in an theme assembly these  assemblies were loaded as I could see in ThemeManger.GetThemes().

Unfortunately using e.g. ThemeManager.Current ="Fall" got me a Runtime Exception:

"By  accessing the style property for Element "Infragistics.Windows.DataPresenter.XAMDataGrid" a cyclic reference was found."

Searching now through my resources to solve the problem ...Perhaps you've got a suggestion?

Daniel

Hi Daniel,

Could you provide sample code or a project in which you're receiving this error? We can investigate your issue further with that. Thanks.

Sincerely,
Duane

Hello Duane,

I'm still searching my application for the reason of the above mentioned error message:

By  accessing the style property for Element "Infragistics.Windows.DataPresenter.XAMDataGrid" a circular reference was found.

Couln't find an answer so far ...

Daniel

Hi Daniel,

I just wanted to know if we're able to answer your questions and you still need help? Just let me know. Thank you.

Sincerely,
Duane

Maybe you have a Style where you are trying to set the Theme property? You should not set the Theme property via a Style setter, etc.