/// <summary> /// Returning boolean whether the <see cref="EventDefinition"/> is assignable on the given <see cref="FrameworkElement"/>. /// </summary> /// <param name="element"><see cref="FrameworkElement"/> to check the assign ability for.</param> /// <returns></returns> internal bool IsAssignable(FrameworkElement element) { var t = element.GetType(); var desc = EventType.GetAttribute <EventDescription>(); return(desc.DeclaringTypes.Any(type => type.IsAssignableFrom(t) || type.Equals(t))); }