Gets a value that indicates whether this XamlMember is a XAML directive.
Assembly: System.Xaml (in System.Xaml.dll)
The value is initialized based on which constructor was used to construct a XamlMember. The base XamlMember constructors initialize so that is false. However, the XamlDirective class (a XamlMember derived class) initializes so that is true.
If you want to report as true to callers of a custom XAML schema class for XAML members, make sure you derive from XamlDirective because that is the only way to enable that behavior.