https://learn.microsoft.com/zh-tw/windows/windows-app-sdk/api/winrt/microsoft.ui.xaml.markup.providevaluetargetproperty?view=windows-app-sdk-1.8
ProvideValueTargetProperty Class (Microsoft.UI.Xaml.Markup) - Windows App SDK | Microsoft Learn
Provides information about the target property of a markup extension.
windows appclassmicrosoftuixaml