[rockfordlhotka]

Moves Samples/MauiExample to CSLA 11 and sets it up to publish with full trimming on Android and NativeAOT on iOS and Mac Catalyst, with no IL warnings. It also fixes an IL2112 that Csla.Xaml (MAUI) causes in any trimmed app that uses csla:PropertyInfo.

Draft: the last commits add a temporary macOS workflow (.github/workflows/maui-sample-aot.yaml) used to verify the NativeAOT builds. It will be removed before this is marked ready. The app still needs a run on a device or simulator.

Sample changes

• Reference Csla and Csla.Maui 11.0.0-alpha.1 and remove the retired Csla.Generator.AutoImplementProperties.CSharp package
• Bump Microsoft.Maui.Controls to 10.0.120 and Microsoft.Extensions.Logging.Debug to 10.0.14, the minimums Csla.Maui 11.0.0-alpha.1 requires (older pins fail restore with NU1605)
• PersonList is partial (CSLA0024); PersonEdit.Fetch assigns Id and Name instead of calling DataMapper.Map, which is [RequiresUnreferencedCode]
• TrimMode=full on Android, PublishAot=true on iOS and Mac Catalyst (NativeAOT already trims every assembly, and the iOS SDK warns if TrimMode is set with it), TrimmerSingleWarn=false, and IsAotCompatible on BusinessLibrary and DataAccess; the stale net9.0 property groups are removed
• Keep csla:PropertyInfo, with one justified IL2026 suppression scoped to PersonEditPage.InitializeComponent. That method is generated from the XAML, so the suppression is declared at assembly level with a Target
• Styles.xaml uses the <OnPlatform> element; the template's {OnPlatform} markup extension caused an IL2026 on its Default
• Use the non-generic RefreshAsync (the MAUI part of Use non-generic RefreshAsync in samples when they move to CSLA 11 #4961; the SaveAsync/ManageObjectLifetime behavior review stays there)
• New readme.md covering the settings, the CSLA trimming rules the sample follows, and how to publish each platform

Framework fix: IL2112 in Csla.Xaml (MAUI)

PropertyInfo has a class-level [RequiresUnreferencedCode], which also covers its static BrokenRulesProperty field. MAUI's VisualElement has [DynamicallyAccessedMembers(PublicFields | NonPublicFields)], which reaches that field, so the trimmer reports IL2112 against Csla.Xaml in every trimmed app that uses the control. The field now has an UnconditionalSuppressMessage for IL2112: its static initializer only creates the BindableProperty and doesn't walk a binding path. The justification is in TrimmingMessages.cs. Avalonia's base types have no such annotation, so only MAUI is affected.

Release note: Csla.Xaml.Maui Release builds against the published Csla package, and 11.0.0-alpha.1 doesn't have the new TrimmingMessages constant. So the Csla.Maui Release build won't compile until the next Csla prerelease ships and the Release reference is bumped to it, the same order used for 11.0.0-alpha.1 (#4971). CI builds MAUI in Debug, so it isn't affected. Until that release, the sample, which references alpha.1, reports this one IL2112 on Android publish; the readme says so.

Testing

• dotnet build Samples/MauiExample/MauiExample.sln -c Debug: 0 errors. The only warnings are the iOS/Mac Catalyst "no connection to a Mac" messages (no CS0618, CSLA0024 or IL warnings)
• dotnet build Source/csla.build.sln and Source/csla.maui.build.sln: no CS or IL warnings (csla.build has its existing MSB3277/NU19xx/NU1510 restore and reference warnings only)
• Android, fully trimmed, against Csla/Csla.Maui packed from this branch: 0 IL warnings. Confirmed trimming ran (PropertyInfo and ViewModelBase kept, unused PropertyStatus removed). Against published alpha.1: only the IL2112 fixed here
• iOS simulator and Mac Catalyst, NativeAOT, on macOS (temporary workflow, against packages from this branch): both succeed with 0 IL warnings, and neither app bundle contains managed assemblies, which confirms NativeAOT compiled them. The workflow builds the iOS simulator app with _IsPublishing=true, because dotnet publish only accepts device RIDs, and it uses Xcode 26.5 with ValidateXcodeVersion=false because this runner image has no simulator runtime for Xcode 26.0
• Still to do: run the app on a device or simulator and check list, edit, save and the validation messages

Closes #4970
Partially addresses #4961 (MAUI RefreshAsync calls)

🤖 Generated with Claude Code

[rockfordlhotka]

@Bowman74 can you help me test this? My new PC has an arm64 processor and so apparently can't run android emulators, and I've never been able to run iOS stuff - but hopefully this PR enables AOT trimming for MAUI.

[Copilot]

🟡 Changes recommended

The new constant reference is missing from MAUI’s Csla 11.0.0-alpha.1 dependency, breaking MAUI Release builds and blocking Csla.Maui packaging.

1 open issue

• Update MAUI Release dependency before referencing new constant · New

What changed in this PR

Updates the MAUI sample to CSLA 11 and demonstrates full trimming on Android and NativeAOT on Apple platforms. It also adds a targeted suppression for the framework’s MAUI PropertyInfo trimming warning.

Changes:

• Updates dependencies and business classes for CSLA 11.
• Enables trimming/AOT settings, replaces reflection-based mapping, and documents publishing.
• Adds a temporary macOS workflow to verify NativeAOT output and check for IL warnings.

File	Description
Source/​Csla/​Core/​TrimmingMessages.cs	Adds the bindable-field suppression justification.
Source/​Csla.Xaml.Shared/​PropertyInfo.cs	Suppresses MAUI-specific IL2112 on BrokenRulesProperty.
Samples/​MauiExample/​readme.md	Documents trimming rules and publish commands.
Samples/​MauiExample/​MauiExample/​Resources/​Styles/​Styles.xaml	Uses the trim-safe OnPlatform element.
Samples/​MauiExample/​MauiExample/​Pages/​PersonListPage.xaml.cs	Uses non-generic RefreshAsync.
Samples/​MauiExample/​MauiExample/​Pages/​PersonEditPage.xaml.cs	Updates refresh calls and scopes the XAML warning suppression.
Samples/​MauiExample/​MauiExample/​MauiExample.csproj	Updates packages and enables platform-specific trimming/AOT.
Samples/​MauiExample/​DataAccess/​DataAccess.csproj	Enables trim and AOT analysis.
Samples/​MauiExample/​BusinessLibrary/​PersonList.cs	Makes the list partial for operation generation.
Samples/​MauiExample/​BusinessLibrary/​PersonEdit.cs	Replaces reflective mapping with explicit assignments.
Samples/​MauiExample/​BusinessLibrary/​BusinessLibrary.csproj	Updates CSLA, removes the retired generator, and enables AOT analysis.
.github/​workflows/​maui-sample-aot.yaml	Adds temporary Apple NativeAOT verification.

_{Review effort: Balanced}