Please add Command implementation sample for creating own Control Librarys with Templated Control Template-File

[DevTKSS]

What would you like clarification on

Current Page: https://github.com/unoplatform/uno/blob/master/doc/articles/guides/how-to-create-control-libraries.md/#L1

The current Example is only including Text setting and I would like to create a own Control that would also contain a Button/AppBarButton, which should be bindable also, but when I am trying to implement the CanExcecute of the DependencyProperty Command typed to ICommand, it wants me to initialize this Command in the constructor, to be able to listen to changes. Maybe that would be done with a eventhandler correctly (looked up the AppBarButton Definition where a private readonly SerialDisposable is used...
I would "simply" like to set the IsEnabled Property from that Button from the CanExecute...

Thats why I would like clarification on this.

Concern

Developing with Uno

Affected platforms

WebAssembly, Android, iOS, Mac Catalyst, Skia (WPF), Skia (Linux X11), Skia (macOS), Skia (Linux Framebuffer), Skia (GTK), Windows (WinAppSDK)

Any feedback?

Especially for those (like me) who are using mvux this topic is maybe harder to understand than for mvvm users who are creating these Commands every time they writing their ViewModel Code which is generated in mvux.

[MartinZikmund]

@DevTKSS You should be able to create a dependency property with ICommand type and then just detach from the previous value/attach to the new value's CanExecuteChanged event to listen to when CanExecute should be called on the instance set there - and then apply the required property like IsEnabled

[DevTKSS]

Hm okay, will try this. Does that also apply to ICommand Bindings in case of viewModels? Like if I would listen to a CanExcecuteChanged of a command property there? Or would I need to detach before resetting that private Property on my View Datacontext Changed?