Make avalonia compile xaml pages per flavor

[CastelloBrancoTecnologia]

What do you think about enabling Avalonia to detect a XAML file by its “flavor” and compile it using Avalonia, WPF, WinUI, or MAUI—depending on the project’s needs?

All controls from these four platforms could be supported through a compatibility layer, allowing legacy systems from any of them to be integrated into new Avalonia projects.

The WPF part is already nearly complete through XPF,
and the MAUI support is currently being developed by the Avalonia team.

All that’s missing is WinUI.
Once integrated, everything could run on a single unified platform powered by Avalonia’s renderer, giving developers the ability to combine the best features of all these UI frameworks in a single application.

[thevortexcloud]

The WPF part is already nearly complete through XPF,
and the MAUI support is currently being developed by the Avalonia team.

These are not the same things as what you are asking for. XPF for example really is WPF, it just uses Avalonia's rendering system. Which means it uses the actual WPF XAML compiler. Modern WinUI is handled by Uno

https://github.com/unoplatform/uno

Also: Obligatory XKCD
https://xkcd.com/927/

[CastelloBrancoTecnologia]

Yes, but with neither xpf or uno I cannot make a program that one page is with winui and other page is wpf.

[emmauss]

Why would you need to do that?
If you really have to use views from multiple frameworks, you can use our native control host to embed other windows in avalonia.

[CastelloBrancoTecnologia]

The objetive is to facilitade port other systems to avalonia and have parts with old code.

[rabbitism]

Good news, Microsoft created a concept called xaml standard https://github.com/microsoft/xaml-standard

Bad news, Microsoft gave up.

[thevortexcloud]

I am sure they will have another ~15 UI frameworks in 4 years, each with their own XAML standard. /s