System.Object
Xamarin.Forms.BindableObject
Xamarin.Forms.Element
Xamarin.Forms.NavigableElement
Xamarin.Forms.VisualElement
Xamarin.Forms.View
C1.Xamarin.Forms.Chart.Annotation.AnnotationBase
C1.Xamarin.Forms.Chart.Annotation.Shape
C1.Xamarin.Forms.Chart.Annotation.Polygon