The outer dock picker buttons flicker when dragging a DockTab

The outer dock picker buttons flicker when dragging a DockTab

Posted by: jacob.a.buchanan6.ctr on 15 July 2026, 12:35 pm EST

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  jacob.a.buchanan6.ctr

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  Posted 15 July 2026, 12:35 pm EST

  The C1DockOuterPicker buttons constantly flicker while dragging a tab around in preparation to dock is somewhere in the C1DockControl. This only happens with the C1DockOuterPickers and not the C1DockInnerPickers I believe because of the popups in the C1DockOuterPicker style. I tried editing the style alone but could not fix the flicker issue.

  I noticed in the DockDragDropData class on MouseMove it is calling DragOut() which hides the pickers, and then soon after that it looks like it calls SetupAllowDeny() which then shows the pickers. I’m guessing this interaction of hide → show → hide → show is causing the flickering? Is there anything I could do to fix this from my end using just what I have access to - the styling?

  For context I am using C1 v9.0.20251.1133. If this issue has been fixed in a newer release like v10+ then I can work with our system admin to get it updated.

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  kartik.dua

  

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  Posted 16 July 2026, 7:47 am EST

  Hi,

  Thank you for sharing all the details.

  We could see the flickering behavior you mentioned with the C1DockOuterPicker buttons. We have shared the observations with the development team to get their insights and will let you know the updates as soon as possible.

  [Internal Tracking ID: C1XAML-39942]

  Best Regards,
  
  Kartik

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  kartik.dua

  

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  Posted 22 July 2026, 2:15 am EST

  Hi Jacob,

  The development team investigated the issue and confirmed that the flickering behavior appears to be a bug in the current implementation of the outer picker buttons. They will continue investigating it further to find a valid solution. We will let you know as soon as we receive any further updates.

  As per them, this issue cannot be fully resolved through styling. At the moment, the only workaround is to disable the outer pickers using the PickerLoading event. This entirely removes the outer picker buttons from the Docker UI. We completely understand that this may not be a feasible solution for you, but we wanted to share it as it is currently the only available workaround.

  We really appreciate your patience and understanding in the meantime.

  Best Regards,
  
  Kartik

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  jacob.a.buchanan6.ctr

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  Posted 22 July 2026, 11:29 am EST

  Thanks for getting back to me with an update.

  We’ll just continue forward with it as is. We will just keep an eye on future release notes for C1 to see when the issue gets resolved.