Using AppThemeResource with ToolbarItem IconImageSource Invalid Resource Type

[Orgbrat]

So I was doing this in .Net 7 with NO issues I thought but since moving to .Net 8 I am receiving and error on setting the ToolbarItem IconImageSource. Has anyone tried this and it works or am I doing something wrong? Or is there a better way to switch images by theme now?

Error : Invalid resource type: expected type is ImageSource, actual type is 'AppThemeObject'

<toolkit:AppThemeObject x:Key="MyAddImageSource" Dark="symboladdwhite.png" Light="symboladd.png" />

<ToolbarItem Command="{Binding AddAppointmentCommand}" IconImageSource="{toolkit:AppThemeResource MyAddImageSource}" Text="New" />

Thanks

[bijington]

I think I remember something around changes to type expectations like this. I think you will need to subclass AppThemeObject with something like: public class AppThemeImageSource : AppThemeObject<InageSource>

[Orgbrat]

@jfversluis Well it compiles for me too but as you can see it has the red squiggle line and the image does not appear at runtime.
And if you hover over red squiggle line it states : Error : Invalid resource type: expected type is ImageSource, actual type is 'AppThemeObject'. I have so far not determined what it wants from me in the XAML code.

Steve

[bijington]

@Orgbrat are you testing this on iOS/macOS? If so I see the same behaviour:

Simulator.Screen.Recording.-.iPhone.15.-.2024-06-26.at.20.57.53.mp4

[bijington]

You can see that the button ImageSource property updates as expected but the ToolbarItem IconImageSource does not

[bijington]

But then if I remove the icon and just rely on the text I see the same behaviour which makes me believe this is a bug in the ToolbarItem and not the AppThemeResource

Simulator.Screen.Recording.-.iPhone.15.-.2024-06-26.at.21.04.08.mp4

[Orgbrat]

@bijington Actually I am testing on Windows Also if this is a ToolbarItem bug, I believe it was a bug introduced in .NET 8.0 as I am almost certain it worked in .NET 7.0 just fine. But I could be wrong... :)