https://learn.microsoft.com/zh-cn/dotnet/api/system.windows.controls.controltemplate.validatetemplatedparent?view=windowsdesktop-10.0&viewFallbackFrom=netframework-4.8.1
ControlTemplate.ValidateTemplatedParent(FrameworkElement) Method (System.Windows.Controls) |...
Checks the templated parent against a set of rules.
methodsystemwindowscontrols