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Editorial Team
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Asked: 2026-06-01T17:28:10+00:00

I am creating design app where users can drag and drop controls to some

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I am creating design app where users can drag and drop controls to some surface.
Some controls in toolbar can contains broken logic and generate exceptions when injected to the surface.
I would like to suppress some unhandled exception comming from the 3rd party controls when they are dropped.

I want to suppress this UI exception and show some kind of popup:

workArea.Dispatcher.UnhandledException += MainContainerDispatcherUnhandledException

Is is possible to handle and suppress based on the source of origin?

Thanks.

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1 Answer

  1. Editorial Team

    You can make use of AppDomain.UnhandledException and in case you recieve it, identify the control that made it happen, and

    • or show to the user a user-friendly message
    • or show some red surface (more or less like VS does)
    • or use an Adorner with animaniton (cool, but more to program)

    Hope this helps.

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