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When we right click on an argument and try to delete it in the Arguments pane of the Workflow designer in Visual Studio 2019, the delete option in the context menu is disabled for the first time. When we right click again on the same argument the delete option get enabled in the context menu.
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Hi
I have made the changes mentioned in above answer, but after adding those switches Switch.UseLegacyAccessibilityFeatures(1~4) from false to true in a re-hosted workflow designer in WPF application, I am getting exception like below in the event viewer on launching application:
Desktop applications setting AppContext switch 'Switch.UseLegacyToolTipDisplay' to false are required to opt in to all earlier accessibility improvements. To do this, ensure that the AppContext switch 'Switch.UseLegacyAccessibilityFeatures.3' is set to 'false', then 'Switch.UseLegacyAccessibilityFeatures' and all 'Switch.UseLegacyAccessibilityFeatures.M' switches, when M < 3, evaluate to false as well. Note that, if a switch for a particular set of accessibility improvements is not present, its value is determined by the target framework version. You can remedy this by adding these switches and setting their value to false.
Hi @Aartik ,
Have you tried the workaround which was suggested by Kun Li?
add the following configuration to the project’s config file(App.config)
<runtime>
<AppContextSwitchOverrides value="Switch.UseLegacyAccessibilityFeatures=true;Switch.UseLegacyAccessibilityFeatures.2=true" />
</runtime>
I have tried this change but after adding these switches as given in a re-hosted workflow designer in WPF application,Delete option from context menu is disabled on first right click got resolved but I am getting exception like below in the event viewer on launching application:
Desktop applications setting AppContext switch 'Switch.UseLegacyToolTipDisplay' to false are required to opt in to all earlier accessibility improvements. To do this, ensure that the AppContext switch 'Switch.UseLegacyAccessibilityFeatures.3' is set to 'false', then 'Switch.UseLegacyAccessibilityFeatures' and all 'Switch.UseLegacyAccessibilityFeatures.M' switches, when M < 3, evaluate to false as well. Note that, if a switch for a particular set of accessibility improvements is not present, its value is determined by the target framework version. You can remedy this by adding these switches and setting their value to false.
Exception Message:
Desktop applications setting AppContext switch 'Switch.UseLegacyToolTipDisplay' to false are required to opt in to all earlier accessibility improvements. To do this, ensure that the AppContext switch 'Switch.UseLegacyAccessibilityFeatures.3' is set to 'false', then 'Switch.UseLegacyAccessibilityFeatures' and all 'Switch.UseLegacyAccessibilityFeatures.M' switches, when M < 3, evaluate to false as well. Note that, if a switch for a particular set of accessibility improvements is not present, its value is determined by the target framework version. You can remedy this by adding these switches and setting their value to false.
Hi @Aartik ,
Welcome to Microsoft Q&A forum.
I can reproduce this issue, and I have reported this issue on our Developer Community, here is the link. Please follow up the thread there and if you have any other details to fill, feel free to add comments there.
Workaround => changing the values of attribute Switch.UseLegacyAccessibilityFeatures(1~4) from false to true in devenv.exe.config file(for VS 2019 Community, it’s in C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\Common7\IDE folder, and you may need to assign the permissions for this file to modify it). See details here.
Thanks for helping us make Visual Studio better.
Best Regards,
Tianyu
Thanks for the recommandation you provided.
I have made the changes mentioned in above answer, but after adding those switches Switch.UseLegacyAccessibilityFeatures(1~4) from false to true in a re-hosted workflow designer in WPF application, I am getting exception like below in the event viewer on launching application:
Desktop applications setting AppContext switch 'Switch.UseLegacyToolTipDisplay' to false are required to opt in to all earlier accessibility improvements. To do this, ensure that the AppContext switch 'Switch.UseLegacyAccessibilityFeatures.3' is set to 'false', then 'Switch.UseLegacyAccessibilityFeatures' and all 'Switch.UseLegacyAccessibilityFeatures.M' switches, when M < 3, evaluate to false as well. Note that, if a switch for a particular set of accessibility improvements is not present, its value is determined by the target framework version. You can remedy this by adding these switches and setting their value to false.