Code Quality: Resolve some of AOT warnings in Files.App.Controls

[0x5bfa]

Resolved / Related Issues

• Feature: Improving Performance, optimizations, reliability and codebase  #4180

Steps used to test these changes

1. Open Files app
2. Try use BreadcrumbBar and Omnibar to change their state at runtime.

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Here's the latest build log:

1>------ Build started: Project: Files.App.Controls, Configuration: Debug x64 ------
1>Sidebar\SidebarStyles.xaml(228,8): XamlCompiler warning WMC1510: Ensure the property path is trimming and AOT compatible by making use of 'Compiled Bindings (x:bind)' if possible or by specifying the 'x:DataType' directive with the respective binding data context and marking the type declaration with the 'WinRT.GeneratedBindableCustomProperty' attribute or the 'Microsoft.UI.Xaml.Data.Bindable' attribute. If you are unable to do either but can ensure the data type is attributed correctly, then you can also suppress the warning by specifying `x:SuppressXamlTrimWarnings=True` within the closest element. If not, the property path might be trimmed and will not be AOT compatible.
1>Sidebar\SidebarStyles.xaml(198,12): XamlCompiler warning WMC1510: Ensure the property path is trimming and AOT compatible by making use of 'Compiled Bindings (x:bind)' if possible or by specifying the 'x:DataType' directive with the respective binding data context and marking the type declaration with the 'WinRT.GeneratedBindableCustomProperty' attribute or the 'Microsoft.UI.Xaml.Data.Bindable' attribute. If you are unable to do either but can ensure the data type is attributed correctly, then you can also suppress the warning by specifying `x:SuppressXamlTrimWarnings=True` within the closest element. If not, the property path might be trimmed and will not be AOT compatible.
1>Sidebar\SidebarStyles.xaml(203,15): XamlCompiler warning WMC1510: Ensure the property path is trimming and AOT compatible by making use of 'Compiled Bindings (x:bind)' if possible or by specifying the 'x:DataType' directive with the respective binding data context and marking the type declaration with the 'WinRT.GeneratedBindableCustomProperty' attribute or the 'Microsoft.UI.Xaml.Data.Bindable' attribute. If you are unable to do either but can ensure the data type is attributed correctly, then you can also suppress the warning by specifying `x:SuppressXamlTrimWarnings=True` within the closest element. If not, the property path might be trimmed and will not be AOT compatible.
1>Sidebar\SidebarStyles.xaml(204,15): XamlCompiler warning WMC1510: Ensure the property path is trimming and AOT compatible by making use of 'Compiled Bindings (x:bind)' if possible or by specifying the 'x:DataType' directive with the respective binding data context and marking the type declaration with the 'WinRT.GeneratedBindableCustomProperty' attribute or the 'Microsoft.UI.Xaml.Data.Bindable' attribute. If you are unable to do either but can ensure the data type is attributed correctly, then you can also suppress the warning by specifying `x:SuppressXamlTrimWarnings=True` within the closest element. If not, the property path might be trimmed and will not be AOT compatible.
1>Sidebar\SidebarStyles.xaml(205,15): XamlCompiler warning WMC1510: Ensure the property path is trimming and AOT compatible by making use of 'Compiled Bindings (x:bind)' if possible or by specifying the 'x:DataType' directive with the respective binding data context and marking the type declaration with the 'WinRT.GeneratedBindableCustomProperty' attribute or the 'Microsoft.UI.Xaml.Data.Bindable' attribute. If you are unable to do either but can ensure the data type is attributed correctly, then you can also suppress the warning by specifying `x:SuppressXamlTrimWarnings=True` within the closest element. If not, the property path might be trimmed and will not be AOT compatible.
1>Sidebar\SidebarStyles.xaml(206,15): XamlCompiler warning WMC1510: Ensure the property path is trimming and AOT compatible by making use of 'Compiled Bindings (x:bind)' if possible or by specifying the 'x:DataType' directive with the respective binding data context and marking the type declaration with the 'WinRT.GeneratedBindableCustomProperty' attribute or the 'Microsoft.UI.Xaml.Data.Bindable' attribute. If you are unable to do either but can ensure the data type is attributed correctly, then you can also suppress the warning by specifying `x:SuppressXamlTrimWarnings=True` within the closest element. If not, the property path might be trimmed and will not be AOT compatible.
1>Sidebar\SidebarStyles.xaml(209,15): XamlCompiler warning WMC1510: Ensure the property path is trimming and AOT compatible by making use of 'Compiled Bindings (x:bind)' if possible or by specifying the 'x:DataType' directive with the respective binding data context and marking the type declaration with the 'WinRT.GeneratedBindableCustomProperty' attribute or the 'Microsoft.UI.Xaml.Data.Bindable' attribute. If you are unable to do either but can ensure the data type is attributed correctly, then you can also suppress the warning by specifying `x:SuppressXamlTrimWarnings=True` within the closest element. If not, the property path might be trimmed and will not be AOT compatible.
1>Sidebar\SidebarStyles.xaml(210,15): XamlCompiler warning WMC1510: Ensure the property path is trimming and AOT compatible by making use of 'Compiled Bindings (x:bind)' if possible or by specifying the 'x:DataType' directive with the respective binding data context and marking the type declaration with the 'WinRT.GeneratedBindableCustomProperty' attribute or the 'Microsoft.UI.Xaml.Data.Bindable' attribute. If you are unable to do either but can ensure the data type is attributed correctly, then you can also suppress the warning by specifying `x:SuppressXamlTrimWarnings=True` within the closest element. If not, the property path might be trimmed and will not be AOT compatible.
1>Sidebar\SidebarStyles.xaml(373,14): XamlCompiler warning WMC1510: Ensure the property path is trimming and AOT compatible by making use of 'Compiled Bindings (x:bind)' if possible or by specifying the 'x:DataType' directive with the respective binding data context and marking the type declaration with the 'WinRT.GeneratedBindableCustomProperty' attribute or the 'Microsoft.UI.Xaml.Data.Bindable' attribute. If you are unable to do either but can ensure the data type is attributed correctly, then you can also suppress the warning by specifying `x:SuppressXamlTrimWarnings=True` within the closest element. If not, the property path might be trimmed and will not be AOT compatible.
1>Sidebar\SidebarStyles.xaml(340,14): XamlCompiler warning WMC1510: Ensure the property path is trimming and AOT compatible by making use of 'Compiled Bindings (x:bind)' if possible or by specifying the 'x:DataType' directive with the respective binding data context and marking the type declaration with the 'WinRT.GeneratedBindableCustomProperty' attribute or the 'Microsoft.UI.Xaml.Data.Bindable' attribute. If you are unable to do either but can ensure the data type is attributed correctly, then you can also suppress the warning by specifying `x:SuppressXamlTrimWarnings=True` within the closest element. If not, the property path might be trimmed and will not be AOT compatible.
1>Sidebar\SidebarStyles.xaml(318,53): XamlCompiler warning WMC1510: Ensure the property path is trimming and AOT compatible by making use of 'Compiled Bindings (x:bind)' if possible or by specifying the 'x:DataType' directive with the respective binding data context and marking the type declaration with the 'WinRT.GeneratedBindableCustomProperty' attribute or the 'Microsoft.UI.Xaml.Data.Bindable' attribute. If you are unable to do either but can ensure the data type is attributed correctly, then you can also suppress the warning by specifying `x:SuppressXamlTrimWarnings=True` within the closest element. If not, the property path might be trimmed and will not be AOT compatible.
1>Sidebar\SidebarStyles.xaml(301,14): XamlCompiler warning WMC1510: Ensure the property path is trimming and AOT compatible by making use of 'Compiled Bindings (x:bind)' if possible or by specifying the 'x:DataType' directive with the respective binding data context and marking the type declaration with the 'WinRT.GeneratedBindableCustomProperty' attribute or the 'Microsoft.UI.Xaml.Data.Bindable' attribute. If you are unable to do either but can ensure the data type is attributed correctly, then you can also suppress the warning by specifying `x:SuppressXamlTrimWarnings=True` within the closest element. If not, the property path might be trimmed and will not be AOT compatible.
1>Sidebar\SidebarStyles.xaml(41,4): XamlCompiler warning WMC1510: Ensure the property path is trimming and AOT compatible by making use of 'Compiled Bindings (x:bind)' if possible or by specifying the 'x:DataType' directive with the respective binding data context and marking the type declaration with the 'WinRT.GeneratedBindableCustomProperty' attribute or the 'Microsoft.UI.Xaml.Data.Bindable' attribute. If you are unable to do either but can ensure the data type is attributed correctly, then you can also suppress the warning by specifying `x:SuppressXamlTrimWarnings=True` within the closest element. If not, the property path might be trimmed and will not be AOT compatible.
1>Sidebar\SidebarStyles.xaml(42,4): XamlCompiler warning WMC1510: Ensure the property path is trimming and AOT compatible by making use of 'Compiled Bindings (x:bind)' if possible or by specifying the 'x:DataType' directive with the respective binding data context and marking the type declaration with the 'WinRT.GeneratedBindableCustomProperty' attribute or the 'Microsoft.UI.Xaml.Data.Bindable' attribute. If you are unable to do either but can ensure the data type is attributed correctly, then you can also suppress the warning by specifying `x:SuppressXamlTrimWarnings=True` within the closest element. If not, the property path might be trimmed and will not be AOT compatible.
1>Sidebar\SidebarStyles.xaml(43,4): XamlCompiler warning WMC1510: Ensure the property path is trimming and AOT compatible by making use of 'Compiled Bindings (x:bind)' if possible or by specifying the 'x:DataType' directive with the respective binding data context and marking the type declaration with the 'WinRT.GeneratedBindableCustomProperty' attribute or the 'Microsoft.UI.Xaml.Data.Bindable' attribute. If you are unable to do either but can ensure the data type is attributed correctly, then you can also suppress the warning by specifying `x:SuppressXamlTrimWarnings=True` within the closest element. If not, the property path might be trimmed and will not be AOT compatible.
1>Sidebar\SidebarStyles.xaml(44,4): XamlCompiler warning WMC1510: Ensure the property path is trimming and AOT compatible by making use of 'Compiled Bindings (x:bind)' if possible or by specifying the 'x:DataType' directive with the respective binding data context and marking the type declaration with the 'WinRT.GeneratedBindableCustomProperty' attribute or the 'Microsoft.UI.Xaml.Data.Bindable' attribute. If you are unable to do either but can ensure the data type is attributed correctly, then you can also suppress the warning by specifying `x:SuppressXamlTrimWarnings=True` within the closest element. If not, the property path might be trimmed and will not be AOT compatible.
1>Sidebar\SidebarStyles.xaml(46,4): XamlCompiler warning WMC1510: Ensure the property path is trimming and AOT compatible by making use of 'Compiled Bindings (x:bind)' if possible or by specifying the 'x:DataType' directive with the respective binding data context and marking the type declaration with the 'WinRT.GeneratedBindableCustomProperty' attribute or the 'Microsoft.UI.Xaml.Data.Bindable' attribute. If you are unable to do either but can ensure the data type is attributed correctly, then you can also suppress the warning by specifying `x:SuppressXamlTrimWarnings=True` within the closest element. If not, the property path might be trimmed and will not be AOT compatible.
1>Sidebar\SidebarStyles.xaml(47,4): XamlCompiler warning WMC1510: Ensure the property path is trimming and AOT compatible by making use of 'Compiled Bindings (x:bind)' if possible or by specifying the 'x:DataType' directive with the respective binding data context and marking the type declaration with the 'WinRT.GeneratedBindableCustomProperty' attribute or the 'Microsoft.UI.Xaml.Data.Bindable' attribute. If you are unable to do either but can ensure the data type is attributed correctly, then you can also suppress the warning by specifying `x:SuppressXamlTrimWarnings=True` within the closest element. If not, the property path might be trimmed and will not be AOT compatible.
1>  0 IID calculations/fetches patched
1>  Files.App.Controls -> D:\Source\Files\src\Files.App.Controls\bin\x64\Debug\net10.0-windows10.0.26100.0\Files.App.Controls.dll

We now only have AOT warnings that come from SidebarStyles. We cannot fix this in this PR because it requires lots of refactoring to resolve AOT warnings.

[Copilot]

Pull request overview

This PR reduces XAML AOT/trimming warnings in Files.App.Controls by replacing several template-time Binding expressions with TemplateBinding in shared control templates. It fits into the controls library work tracked under #4180, specifically the effort to improve code quality and runtime compatibility without refactoring the larger SidebarStyles surface yet.

Changes:

• Replaced templated-parent bindings with TemplateBinding in SamplePanel template content/header bindings.
• Updated Omnibar and OmnibarMode templates to use TemplateBinding for padding, content, tooltips, and accessibility names.
• Updated BreadcrumbBar template bindings for root content and repeater source/template wiring.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
src/Files.App.Controls/SamplePanel/SamplePanel.xaml	Simplifies SamplePanel template bindings for header, main content, and side content.
src/Files.App.Controls/Omnibar/Omnibar.xaml	Reworks Omnibar/OmnibarMode template bindings to reduce AOT warnings in the main control template.
src/Files.App.Controls/BreadcrumbBar/BreadcrumbBar.xaml	Switches BreadcrumbBar root item and repeater bindings to template bindings.

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[0x5bfa]

It's alright, we don't set PlaceholderForeground here.