System.ComponentModel.Composition 4.0.0.0 To be added. Represents an element that participates in composition. Property 4.0.0.0 System.String To be added. Implementers of this property should never return null or an empty string (""). Gets the display name of the composition element. Property 4.0.0.0 System.ComponentModel.Composition.Primitives.ICompositionElement To be added. To be added. Gets the composition element from which the current composition element originated.