Hi, we had made a custom style/template for the RadTreeListView component, and after we upgraded to the latest SP, the expander button lost its pretty face and was replaced by some new default style. Please take a look at the attached screen shots. They show the expander button before and after the update. I am not a designer myself, and the guy who did the design is not assigned to the project anymore. Can you help me out here?

Best regards,
/Henrik

Hello hwsoderlund,

Indeed we did introduce a minor change in the toggle button and this might have affected your project. That being said, I would gladly provide you with the assistance you need if you could send me a sample illustrating your issue so I can apply the changes needed to get your pretty expander back. 

Greetings,
Kalin Milanov
the Telerik team

Thank you, but I managed to solve it myself. And I learned a few things about Blend on the way, so no harm done. :)

I have to say though, that when building custom styles for 3rd party controls (and some of us do that a lot) it becomes a problem when the templates/styles change from one version to another. Of course I understand that it is not possible to always be backwards compatible, but maybe you could include significant template changes in the list of breaking changes? For me as a developer a situation like this is no big deal, especially since the functionality worked perfectly even with the updated button. But it is exactly the kind of problem that can send a troublesome client through the roof. Many of our clients would view it as a breaking change if the big, shiny button that they wanted so much (and sometimes even paid extra for) was suddenly replaced by a small grey plus/minus sign. So to conclude this little rant, if you could think of a way to let us know beforehand which templates have changed enough that they might break things, that would be great.

Best regards,
/Henrik