TextBox Extensions for SurfaceDial not working for CommunityToolkit WinUI 3 for desktop

[michael-hawker]

Discussed in #4571

^{Originally posted by victorchinn June 4, 2022}
I am getting a XAML parsing error
Microsoft.UI.Xaml.Markup.XamlParseException: 'XAML parsing failed.'
when using this code example in the XAML for TextBox:
ui:TextBoxExtensions.SurfaceDialOptions
<ui:SurfaceDialOptions StepValue="1"
RotationResolutionInDegrees="12"
EnableHapticFeedback="True"
EnableMinMaxValue="True"
MinValue="0"
MaxValue="100"
Icon="Ruler"
EnableTapToNextControl="True" />
</ui:TextBoxExtensions.SurfaceDialOptions>

Is this not available for Win UI3 for .NET 6 desktop as the target or am I missing something ?

@azchohfi mentioned here:

OK, I've found this: https://github.com/microsoft/Windows-classic-samples/blob/27ffb0811ca761741502feaefdb591aebf592193/Samples/RadialController/cs/winforms/Form1.cs#L48-L51 @michael-hawker this means this is fixable.

So this should be a straight-forward fix for our WinUI branch.