When we hover on the Xaml Button hosted in the childsitelink the UIA asks which element is under the screen point and calls intoCompositionRootAutomationProvider::ElementProviderFromPoint -----> which calls into RootComponentView::UiaProviderFromPoint ----> RootComponentView::Hittest and then it tries to find the tag for the ContentIslandComponentView.
As ViewComponentView is the base class for ContentIslandComponentView it should correctly return the tag.
Once the above is implemented ensure Accessibility props are read in Accessibility Insights.
Guidance:
Any 3P Xaml Control when registering with the app should not inherit from ViewComponentView and should inherit from ComponentView.
When we hover on the Xaml Button hosted in the childsitelink the UIA asks which element is under the screen point and calls intoCompositionRootAutomationProvider::ElementProviderFromPoint -----> which calls into RootComponentView::UiaProviderFromPoint ----> RootComponentView::Hittest and then it tries to find the tag for the ContentIslandComponentView.
As ViewComponentView is the base class for ContentIslandComponentView it should correctly return the tag.
Once the above is implemented ensure Accessibility props are read in Accessibility Insights.
Guidance:
Any 3P Xaml Control when registering with the app should not inherit from ViewComponentView and should inherit from ComponentView.