Thank you for the example, it works as expected here too.

But I have a Tick Template that I use and that in combination with Tick Placement="Bottom Right" makes it not to update the UI correctly.

The standard WPF Combo Box works in exactly the same way, which was our objective when we developed the control.Hi Christian Is it possible to have something like below: When I do this I get a below exception: Exception Cannot add content of type 'System. Thanks Hi Christian Is it possible to have something like below: When I do this I get a below exception: Exception Cannot add content of type 'System. This xaml displays button but you can't click on it. Tool Tip> < Tool Tip Placement=" Center" Focusable=" True" Stays Open=" True"> < Button Content="button inside tool tip" Focusable=" True" Click=" Button_Click_1" /> </Tool Tip> </Combo Box.If you replace the slider with this you will hopefully see the issue. Indeed when Minimum equals Maximum the tick is not updated.We will do our best a fix is included in our next week's Service Pack release.