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Designer throws an exception with control behavior

See original GitHub issue

Hello, I am using Avalonia.Xaml.Behaviors, I have created my own behavior, added it to TextBox like this

<TextBox>
  <i:Interaction.Behaviors>
    <beh:KeepTextBoxFocusBehavior />
  </i:Interaction.Behaviors>
</TextBox>

but the designer keeps crashing, in the error list I have Exception has been thrown by the target of an invocation. When I run that app, it works as it has, so it’s only designer’s problem. As soon as I remove <beh:KeepTextBoxFocusBehavior />, it reappears again. Any ideas how to fix it? Or disable project code in designer?

Issue Analytics

State:
Created 3 years ago
Comments:5 (3 by maintainers)

Top GitHub Comments

2reactions

grokyscommented, May 14, 2020

@Deadpikle in your case the designer is failing because MyTextBox is internal and and the XAML compiler’s System.Reflection.Emit backend is unable to work with internal types currently. Not sure if we can fix this, will investigate.

Still need to work out what’s happening with behaviors.

0reactions

rstm-sfcommented, Nov 12, 2020

Maybe, in 0.10 it is not necessary to indicate public https://github.com/AvaloniaUI/Avalonia/pull/4985

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