Xaml Designer Crash "ArgumentException: 'RadGlyphExtension' is not valid for Setter.Value."

[Psyduck]

Hello

Checked that the designer crashes when setting the DataContext viewmodel in xaml.

Please check the attached file for details. Here is a simple example source.

It also sends an associated link about the occurrence of the exception.
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Additionally, if you attach the DataContext to the xaml, when the designer crashes, clearing the RadGridView's ItemsSource will bring the designer back to display.


Could you solve this problem?
Thanks.

 

[Martin Ivanov]

Hello KIM,

Thank you for the additional information and the project. I can confirm that this is the same issue as the one linked from the other forum. I am posting it also here: 

https://feedback.telerik.com/wpf/1355106-gridview-argumentexception-is-thrown-design-time-when-the-telerik-windows-controls-gridview-xaml-file-is-copied-in-the-project-directory?_ga=2.117039110.1001992534.1620608015-2051170640.1606814130

I will include this new information in the internal backlog items so we can take it into account when needed.

In the meantime, you can work this around by referencing the Telerik .xaml resources from the theme dll, instead of copying the .xaml files into the project. I've updated the attached project to show this approach. I hope this helps.

Regards,
Martin Ivanov
Progress Telerik