Public ReadOnly Property GenericDictionaryLocation As ResourceDictionaryLocation

Dim instance As ThemeInfoAttribute
Dim value As ResourceDictionaryLocation

value = instance.GenericDictionaryLocation

public ResourceDictionaryLocation GenericDictionaryLocation { get; }

public:
property ResourceDictionaryLocation GenericDictionaryLocation {
    ResourceDictionaryLocation get ();
}

public function get GenericDictionaryLocation () : ResourceDictionaryLocation

You cannot set this property in XAML.