[Bug]: ViewModelViewHost does not set DataContext in WPF

[jhimes144]

Describe the bug 🐞

In Avalonia, their ViewModelViewHost correctly sets the datacontext for a view to the wired view model. In WPF, the default ViewModelViewHost implementation does not do this, you are forced to manually set the DataContext after view activation. I suspect this is because the generic design of the ViewModelHost to allow it to work for various UI frameworks, because there is no code within to do this.

Step to reproduce

1. Create a WPF app with a ViewModelViewHost with ViewModel set to a viewmodel with a view declared.
2. Observe that bindings do not work.

Reproduction repository

https://github.com/reactiveui/ReactiveUI

Expected behavior

Using the ViewModelViewHost, should both render my view and bindings should work.

Screenshots 🖼️

No response

IDE

Rider Windows

Operating system

Windows

Version

11

Device

PC

ReactiveUI Version

19.5.39

Additional information ℹ️

No response

[glennawatson]

We don't set the DataContext by design. Rxui does not require it if you do rxui binding. The user can set the datacontext if they want with the rxui binding.

[github-actions]

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