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Exception when DesktopAlert Auto closes

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DesktopAlert
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Kourosh
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Kourosh asked on 03 Sep 2018, 10:40 AM

Hello Telerik,

I am getting following exception message: "the calling thread cannot access this object because a different thread owns it".

I have RadDesktopAlertManager inside a separate thread and this error shows up only when DesktopAlert closes itself.

Any idea how to solve it?

Best regards

kourosh

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Kourosh
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answered on 03 Sep 2018, 10:59 AM
Should I have RadDesktopAlertManager on the same thread as UI?
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Martin Ivanov
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answered on 04 Sep 2018, 07:01 AM
Hello kourosh,

The WPF framework is design to work with a single  thread. You can read more about this in the threading model MSDN article. This means that you cannot access UI elements on thread other than the main UI thread. If you do that the reported exception raises. To avoid this you will need to work with the desktop alert control only on the main thread. Also, note that the RadDesktopAlertManager works with the UI so you will need to use it on the main thread too.

Regards,
Martin Ivanov
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Martin Ivanov
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