Gets a value that indicates whether this XamlType represents a public type in the relevant type system.
Assembly: System.Xaml (in System.Xaml.dll)
LookupIsPublic is virtual, and therefore, can be overridden. The override has the potential (whether for malicious purposes or otherwise) to change the reported access information about a XAML type so that it no longer aligns in an expected way with the type system and access information of its underlying CLR type. For any security-critical checks of assignment operations and access, use the underlying CLR type instead.