Bindings invoke disposed ViewModels even though the DataContext was set to null beforehand #11956
Description
Context
Our client complains about (non-fatal) exceptions (thrown from ViewModels) being reported in their diagnostics dashboard.
After some investigation and some attempted fixes, I was able to resolve the issues for the UWP version of the app. However, the mobile version still have the problem.
Current behavior
Basically, the Uno.UI.DataBinding.BindingPropertyHelper invokes properties on some disposed ViewModels, which leads to exceptions.
We tried to fix this by ensuring that we set the DataContext of pages to null before disposing it (the ViewModel).
This seems to work fine on UWP, but not on mobile.
Expected behavior
Mobile behaves like Windows.
How to reproduce it (as minimally and precisely as possible)
No response
Workaround
No response
Works on UWP/WinUI
Yes
Environment
Uno.UI / Uno.UI.WebAssembly / Uno.UI.Skia
NuGet package version(s)
4.6.44
Affected platforms
Android, iOS
IDE
Visual Studio 2022
IDE version
17.3.6
Relevant plugins
No response
Anything else we need to know?
No response