The two buttons - the one in the RadExpander
and that in the RadListTreeView
are from different types, so there is actually no lazy way to do it by reusing the style of the one. The easiest way to achieve your goal is by customizing the HeaderButton
in the ControlTemplate
of the expander control. Basically, you can remove the circles and their animations and changing the arrow drawing. I am attaching you the whole custom Style for the RadExpander
, where I have made changes only to the HeaderButtonStyle
, customizing it to the current need. You can build on that if you want to change colors or animations.
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