ColorPicker sample in gallery crashing under Windows App SDK

[Arlodotexe]

Describe the bug

When running the gallery with the Wasdk head on the latest main commit, the ColorPicker sample will crash the app:

   at WinRT.ExceptionHelpers.<ThrowExceptionForHR>g__Throw|38_0(Int32 hr)
   at ABI.Microsoft.UI.Xaml.IFrameworkElementOverridesMethods.MeasureOverride(IObjectReference _obj, Size availableSize)
   at Microsoft.UI.Xaml.FrameworkElement.MeasureOverride(Size availableSize)
   at Microsoft.UI.Xaml.FrameworkElement.Microsoft.UI.Xaml.IFrameworkElementOverrides.MeasureOverride(Size availableSize)
   at ABI.Microsoft.UI.Xaml.IFrameworkElementOverrides.Do_Abi_MeasureOverride_0(IntPtr thisPtr, Size availableSize, Size* result)

This crash does not occur under UWP.

Steps to reproduce

1. Clone the repo
2. Generate the gallery solution, include the ColorPicker component and the wasdk multitarget/head.
3. Build and deploy the wasdk gallery 
4. Navigate to the ColorPicker sample page and observe crash.

Expected behavior

No crash.

Screenshots

No response

Code Platform

• UWP
• WinAppSDK / WinUI 3
• Web Assembly (WASM)
• Android
• iOS
• MacOS
• Linux / GTK

Windows Build Number

• Windows 10 1809 (Build 17763)
• Windows 10 1903 (Build 18362)
• Windows 10 1909 (Build 18363)
• Windows 10 2004 (Build 19041)
• Windows 10 20H2 (Build 19042)
• Windows 10 21H1 (Build 19043)
• Windows 10 21H2 (Build 19044)
• Windows 10 22H2 (Build 19045)
• Windows 11 21H2 (Build 22000)
• Other (specify)

Other Windows Build number

No response

App minimum and target SDK version

• Windows 10, version 1809 (Build 17763)
• Windows 10, version 1903 (Build 18362)
• Windows 10, version 1909 (Build 18363)
• Windows 10, version 2004 (Build 19041)
• Windows 10, version 2104 (Build 20348)
• Windows 11, version 22H2 (Build 22000)
• Other (specify)

Other SDK version

No response

Visual Studio Version

No response

Visual Studio Build Number

No response

Device form factor

No response

Additional context

No response

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[Arlodotexe]

Has the same error message as #517

[Arlodotexe]

Additional info uncovered thanks to a tip from @Sergio0694

(Possibly related to #516? Though, not the same error message.)

@michael-hawker Anything you could add? SwitchPresenter may be having more than one AoT issue here.

[michael-hawker]

@Arlodotexe Switch Presenter uses all the general types and such from XAML like DependencyObjectCollection and DependencyObject - It also just does a lot of general comparison/reflection-y type stuff when trying to compare values here: https://github.com/CommunityToolkit/Windows/blob/main/components/Primitives/src/SwitchPresenter/SwitchPresenter.cs#L116

So, there's probably something there to figure out how to better guard against?

I also saw a new issue on the WinUI repo about controls and resource dictionaries + trimming, so something we may want to keep an eye on incase there's other underlying issues still we need to be concerned about or bubble up with the platform team. RE: microsoft/microsoft-ui-xaml#10020

[Arlodotexe]

Since #516 turned out to be an issue with the EnumValuesExtension, I suspect this may be a binding issue given the data in the exception. Could also be erroring internally in the setter, but the Value property is a good place to start looking.

[Arlodotexe]

It looks like the problem is here:

Windows/components/ColorPicker/src/ColorPicker.xaml

Lines 238 to 240 in 7ab8a42

	<controls:SwitchPresenter x:Name="ContentContainer"
	Grid.Row="2"
	Value="{Binding ElementName=ColorPanelSelector, Path=SelectedItem.Name}">

Unfortunately, this isn't a backed resource dictionary, so we can't use x:Bind here. If we try, we get the error:

1>V:\Windows\components\ColorPicker\src\ColorPicker.xaml(240,55): XamlCompiler error WMC1119: This Xaml file must have a code-behind class to use {x:Bind}. See http://go.microsoft.com/fwlink/?LinkID=532920&clcid=0x409 for more information
1>Done building project "CommunityToolkit.WinUI.Controls.ColorPicker.csproj" -- FAILED.

To fix the problem, we'll need to locate any .xaml files that use a non-TemplatedParent variant of {Binding}, update the resource dictionary to be backed by a cs file, and update bindings to use x:Bind.

[michael-hawker]

This issue got opened on the WinUI repo which is related microsoft/microsoft-ui-xaml#10214 - not too sure what we can do here atm.