In order to achieve your goal you have to edit the default template of the RadExpander
control. For more information you can take a look at this article
. When you extract it you will be able to find a Path
control named "arrow
". In your case you will have to replace it with an Image
control. Furthermore, you will have to customize the VisualStates
that change the control named "arrow
". In your case you will have to change the Image
property in the different states.
For your convenience I exacted and edited the default template in the attached project. Please note that I have replaced the Path
control with an Ellipse
I hope this works in your scenario.
Pavel R. Pavlov
the Telerik team