GradientStopSlider bug when used in a popup or a window with auto size content

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Posted 5 years ago by Julien Audran
Version: 18.1.0673
Platform: .NET 4.7
Environment: Windows 10 (64-bit)


We find out a small bug with the GradientStopSlider control. If you use it within a popup (for instance in a shared PopupButton popup content), it will use the full screen width. We find out that the PART_Checkerboard in the code (GetCheckerboardGeometry) use the ActualWidth and compute a geometry based on that value.

To fix the problem (without changing the code), we override the style and replace the:

<Path x:Name="PART_Checkerboard" Height="{TemplateBinding TrackHeight}" Fill="#cccccc" />


<Border Background="{DynamicResource CheckerBackgroundBrush}" BorderBrush="#cccccc" />

The CheckerBackgroundBrush is the one define in the shared library (used with the shared ColorComponentSlider for instance).


Julien Audran

Comments (1)

Answer - Posted 5 years ago by Actipro Software Support - Cleveland, OH, USA

Hi Julien,

Thank you for letting us know.  We will return a default width of 200 when infinite width constraint is passed into the control's Measure logic.  This update will be in the next build.

Actipro Software Support

The latest build of this product (v24.1.2) was released 2 months ago, which was after the last post in this thread.

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